I added my question to this thread without additional details because my issue, and my setup, are identical to that described by the OP: TCL Roku TV, DVD player connected with RCA cables not HDMI. This is for my 90-year old dad: primarily for antenna-TV, but would like to watch DVDs, too. Did all that was mentioned in the first reply to OP: in TV inputs - select AV; it allows renaming, nothing additional that would constitute settings; that icon does NOT show up in the main menu after renaming. An additional, related question (assuming that we can ever get the DVD player to communicate): in the process of scanning for channels, do we need to use channels 3,4 for DVD player, or will he simply be able to select the proper input icon (again, assuming we ever get that to work)? Thanks for any help.
If the tile is present and clicking on it does nothing, then it might be how the cable is attached to the tv. Some Roku tv's only have a mini-jack marked AV, thats where you plug in what is called a breakout cable, it has 3/4 phono plug on one end and composite(RCA) jacks on the other. To accept rca to rca cable. Other roku tv's have rca inputs on the tv itself where you just plug a rca to rca cable in. Also make sure the yellow(video) is plugged into the yellow jack. The red and white are audio and won't handle video.
In my case, the tile does NOT show up in main menu after connecting and making change to TV inputs, so there is NO way to "click on it." Yes, I correctly attached the RCA cable to DVD player and to TV (red-to-red, white-white, yellow-yellow, just to be clear).
The Roku TV does NOT recognize the DVD player, even while the DVD player is on, with DVD inserted, and playing (according to indicators on the player).
Again, the AV input does NOT show up as a tile option in the Home menu - no matter what choice I make in renaming it. Have tried putting the TV on channel 3 and on channel 4 (because, during channel scanning process, it prompts "do you need... for DVD player") - no signal.
When I'm at the renaming part, after I rename it there is no "enter" or ok or anything to move it to the next option or screen, my only option is to back out of it. I tried hitting the the side arrows at the same time or holding the ok button for several seconds, I tried the * button, anything that would mean "I choose this".
So when I back out of it the tile goes back to being what it was in the first place.