, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Ron, sorry to hear you're having trouble,
I don't see a model number noted, but most all panasonic tvs operate the same way. If you aren't seeing the desired input come up in the input list, then either there is no signal detected ( a problem with the camera) OR (more likely) the input is disabled.
If you go into the panasonic setup menu, usually under the Option setup section, you should see Input Labels, choose that, and there you can assign a specific name (cable, dvd, etc) to each of the input ports, as well as to "hide" any unused ones. You'll simply need to unhide the scart/av1 selection, and it should then be available .