What do I do for tv switching from tv to various video modes and cycling through set up screens

You'll need to switch the TV into Video mode. Most TV sets will have a button on the front panel labelled "input" or "tv/video," and pressing this button will cycle through the various inputs your TV has.

Alternatively, this button may be located on your remote control.

Rarely, no button exists, and video input is selected by changing the channel below channel 2; as if you were trying to select channel 1. This will select the video input on sets without a separate input selector button.

It sounds like your aunt switched the TV's "input" mode. Look for a button labeled "Input" and press it. She will most likely have to press it a few times as it cycles through the various inputs till she reaches the correct one.

Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

Hope it may help you;

Regards;
VOTIT

Hi there, my husband fix the problem. My small son had changed the settings for the HDMI. My husband switched the tv to DVD mode started a dvd & changed all the settings back. After changing all the settings he also reboothed the setbox machine.

sometimes on the remote itself there is a video button to change over to diffrent mode, but at least should hear audio because thats on a totally diffrent output. i would try using a diffrerent output on the dvd player such as svideo, what were u using before on the out, was it component or the standard video out such as yellow output, you will have to use process of elimination..

it sounds like you need to get a universal remote that has an av setting on it usuall this is 0 or an av button this shoud toggle between these modes sorry couldnt be any more help

I had the same problem when I got the TV from someone and I didnt have a remote. I went out and got a ONE FOR ALL remote and once I got it set up I had it in VCR mode and hit the AV button and now I can get to the channels. Hope it works for you.

The TV is in the DEMO mode. Many sets have a demo mode, and they are all turned on and off differently. I do not recall exactly how it is done on the Toshiba, but if you look in your owner's manual or go through all pages of the menu, you should be able to find the option for demo mode and be able to turn it off.

Sounds like a bad bulb.

It sounds as though the TVs in a demo mode. Has someone recently been over and was playing with the remote. If so go into the menu of the tV set and look for set up and demo mode. Turn off the demo mode. if this doesent help call i-866-427-3946 and talk to the customer service deptartment. Good Luck