The TV is an Insignia NS-19LD120A13. The TV doesn't display anything when the N64 is connected and powered on with a cartridge (I tried all the input options, each one displays no signal). I Googled this issue and found a few related threads, saying that some newer TVs don't "contain the components" to display video from older consoles such as the SNES or N64. Now, those Yellow/Red/White cables are analog, so there are no components to be missing... but perhaps the TV isn't sampling the resolution of the input correctly? But if that's the case, I would at least hear audio, yes?
What is the problem here?
Also, what is a workaround? I saw suggestions to use a component > VGA adapter. Anything else?
Another possibility is that the N64 itself may have suddenly died during the 10 minutes that I was swapping out TVs... but that doesn't seem likely.