Channel numbers change but channel does not

Sounds like an AGC [Automatic Gain Control] problem with its video IF stage circuit. Contact any service technician, or service center. This is not a user repairable fault.
Gopakumar Gopalan Google

I think you are confusing the channel on the tv and the channel of the cable company that is not something that you can pick up with the scan tv, scan tv is good for picking up local channel meaning air channel that we get with a antenna only not the cable chanel

Usually this happens to my set when I am in HD cable channel mode after being on a non-digital ANALOG channel.

I basically reset the TV by changing to a DIGITAL cable channel -- stay on that channel for ten-twenty seconds -- then I switch back DIRECTLY to a HD channel (key in channel number directly on remote).

TV works fine -- seems to be a glitch when the TV changes modes from Analog to HD

Some VHS have a tracking button that allows the user to tune to the best signal. Usually that tracking function is used as follows.
While movie is playing on the VHS unit and signal gets fuzzy, press the channel key repeatedly (for example >> to increase the channel number). f after awhile pressing the same channel change button does not find a better picture, you should press the other channel change button (to decrease the channel number <<) to see if the picture improves.

If that does not work, IT DOES NOT MEAN that you tv/vcr combo unit is defective. It could just be the movie. The tape is magnetic and it might have been accidentally demagnetized.

If picture is better with another movie/tape, your unit is definitely OK.

The TV is usually set to Channel 3 or Channel 4. You may have a switch on the back of the VHS recorder near which is marked Ch3 Ch4.

Once you correct this, try the following procedure.

Some VHS have a tracking button that allows the user to tune to the best signal. The tracking can also be done from the remote controller.

Usually that tracking function is used as follows.
While movie is playing on the VHS unit and signal gets fuzzy, press the channel key repeatedly (for example >> to increase the channel number). f after awhile pressing the same channel change button does not find a better picture, you should press the other channel change button (to decrease the channel number <<) to see if the picture improves.

If that does not work, IT DOES NOT MEAN that you tv/vcr combo unit is defective. It could just be the movie. The tape is magnetic and it might have been accidentally demagnetized.

If picture is better with another movie/tape, your unit is definitely OK.

Your TVs tuner tuned a little off frequency. It could be as simple as having cable box on where you have good picture but fuzzy sound, use the TVs remote to change the channel and then change it back to proper channel. If that doesn't fix you may have wrong tuning type selected in channel set up menu.

adjust the antenna! or the cable connection could just be loose or dirty!

Which caps on which boards as that sounds like a issue with the signal and FMT PCB. The v26 chassis like yours has problems with bad caps on the DM, Signal, FMT and the PWB and terminal

Tis is an ongoing problem I seen increase alot over the past few months. From what I can gather, all the channels being broadcast over going from the analog to digital, there's no big suprise to anyone. However, the change from analog to digital is changing at a faster rate, so when you look at the TV some channels will be fine and others will have grey lines, fuzzy picture. The only solution-you need a TV with some kind of digital tuner. On the TV itself if the (TV has one) it will say "SD" or "ED" which stands for standard digital or enhanced digital.

The channel guide is a service just like closed caption. Rumer has it that it's not going to be around for much longer. The only fix is to unplug set ..wait awhile till memory loss occurs...plug back up and do a setup. Nothing in the TV will cause partial guide. Weak signal could and cause fuzzy picture too. Complain to cable company. But brightness problem is something else.