Only get two channels - Coby TVDVD1350 13 in. TV/DVD Combo

What is the difference between a RF channel and a virtual channel? The RF channel is the channel that the TV station uses to broadcast its signal. Before the conversion to digital, TV stations were normally identified by their channel number, and most people knew that a particular network was on a specific TV channel. While analog broadcasting was being phased out and all TV stations were converting to digital broadcasting, it was necessary for the TV stations to continue to broadcast their analog signals on their original RF channels, and also broadcast their digital signals on a different RF channel. However, since the TV station used their broadcast channel as part of their identification, they wanted to keep using the same channel number. To allow this to happen, the new digital television broadcasting standards (ATSC) provided TV stations the ability to continue to use their original channel number and also tell the TV set to tune to the new RF broadcast channel when their virtual channel number was selected. The original channel number is called the virtual channel number, and it will be followed by a period and a second number (3.1, 7.1, etc.).
One of the benefits of converting to digital for the TV stations is that they now have the ability to transmit more than one program at the same time on the same RF channel. The number of additional channels they can broadcast is determined by the resolution of the program (SD vs. HD, text only, music only, etc.). The second number in their virtual channel number indicates that one of the additional programming sources from the same TV station is being viewed (10.2, 10.3, 10.4, etc.).
When selecting an antenna, it is important to understand the difference between the RF broadcast channel and the virtual channel. Antennas are designed to receive specific ranges of RF channels, and the antenna needs to be selected for the RF channel you wish to receive. TV stations broadcast in two broad frequency ranges, called VHF and UHF. RF channels 2 through 13 are considered VHF, and RF channels 14 through 51 are considered UHF. In order to pick up the channels, the antenna has to be designed for the correct frequency range. It is very common today to find that TV stations using virtual channels 2 through 13 are actually using RF broadcast channels in the UHF range. Although not as common, some TV stations using virtual channels 14 through 51 are actually transmitting in the VHF range. An antenna designed for only UHF channels will not work effectively for RF broadcast channels in the VHF range, and an antenna designed for only VHF channels will not work effectively for RF broadcast channels in the UHF range.

local channels are usually below a channel 1000. they are always on same assigned channel. If your cable box or tv has it, it has option to not display channels with no service on them. you can't reassign the channel numbers. they are channels but not being displayed.

Hi Gary - I copied this from the RIO NIKE manual:

mode button
Press MODE to select the setting you want to change.
The normal display is replaced by the adjustable setting.
Use the + and - buttons to adjust the settings.
These are the settings you can change.
1. Main Channel (1-14)
2. Sub Channel (1-38)
3. Channel Scan (ON/OFF)
4. Sub Channel Scan (ON/OFF)
5. Button Confirmation Tone and Roger Beep ON/OFF)
6. Vox (OFF, ON LO, ON HI) (psc[communicate wxonly)
When you have proceeded through all adjustable settings, the normal display will reappear. Or, press TALK at any time to return to the normal display.

select main channel
There are 14 main channels.
To select main channels:
1. Press MODE until CHAN is displayed.
2. Press + and - keys to select the main channel.
select sub channel:
Each main channel has 38 sub channels, sometimes called
CTCSS channels. Select one of these sub channels to transmit
on a channel that is free from traffic.
To select sub channels:
1. Press MODE until SUB CHAN is displayed
2. Press + and - keys to select the sub channel.
Note :If you select channel "0," you will be able to receive transmissions from all the sub channels of the main channel you selected.

Download manual:

Channel Lockout You can lock out a channel so it is not scanned. Channel Lockout does not erase the frequency from the channel. You can lock out up to 50 channels, including the Priority channel.
Lockout information is retained in the memory when the scanner is turned off.To Lock out a Channel
Example: Suppose you want to lock out Channel 2 because it stops on transmissions you don't want to hear.Press LOCKOUT when the scanner stops on Channel 2.The scanner locks out Channel 2, Then it immediately advances to the next channel that is not locked out, and resumes scanning.In the Manual mode, press LOCKOUT to lock out the displayed channel. Pressing LOCKOUT does not advance to the next channel in Manual mode.L/O appears in the display to indicate the displayed channel is locked out.Whenever you want to search for channels that are locked out, press MANUAL repeatedly to go through all 50 channels. If a channel is locked out, L/O
appears in the display.Restore a Locked Out Channel To unlock a channel so that it can be monitored during scanning:1. Press MANUAL repeatedly to find the locked out channel.2. Press LOCKOUT again to unlock the displayed channel. L/O no longer appears in the display.Restore All Locked Out Channel To unlock all channels, you must be in the Manual Mode.1. Press MANUAL.
2. Press and hold LOCKOUT to unlock all channels. The L/O indicator goes out on any channel previously locked out.

Also have a 42" Toshiba and had the same problem, then had issues moving the channel order while some channels were set to skip.

What I ended up doing was retuning the tv. Then went through the channel list (Menu -> Setup -> DTV Setting -> Channels) and changed the number of the channels I didn't want to 1000+ (using the red button, ie 1001, 1002, 1003...). This in itself does not change the channel order, but when I then move these channels to the end of the channel list and because they are numbered numerically I can be sure I don't miss any.

Next I went to the channel options (Menu -> Setup -> DTV Setting -> Channel Options) and marked all the channels I'd moved to the end of the list as channels to skip and locked. This does not remove the channels from the EPG but it does move them to the end of the list and when scrolling with the channel +/- buttons these channels will not be selected.

Ideally I would also like to delete channels such as QVC etc altogether and would love to know if anyone has a more effective solution to this issue.

these are FRS radios, and use only the 14 FRS channels within the GMRS band. they will not operate on the other GMRS channels in the GMRS band. FRS Channel Frequency Assignments: Channel 1: 462.5625mhz Channel 2: 462.5875mhz Channel 3: 462.6125mhz Channel 4: 462.6375mhz Channel 5: 462.6625mhz Channel 6: 462.6875mhz Channel 7: 462.7125mhz Channel 8: 467.5625mhz Channel 9: 467.5875mhz Channel 10: 467.6125mhz Channel 11: 467.6375mhz Channel 12: 467.6625mhz Channel 13: 467.6875mhz Channel 14: 467.7125mhz