1. TVs aren't made for recording. But the best type of TV is a CRT (if you're playing on the original N64). The CRT I'd prefer is a "Sony Trinitron". They're the biggest and the best of CRTs.

2. Today's standard TVs are more for HDMI cables. And I remember a few years ago I could barely have my VCR cooperate with my TV in my bedroom. So with any device that only uses AV cables, use a CRT. Today's TVs have what is called "Input lag". Which means there is a delay in your gaming inputs, so definetly don't use a HDMI TV.

3. Your capture card should hopefully not effect your image on the TV. With my old Elgato I couldn't see my NES image. It was frozen, but if you do have a problem with your Elgato, get GV-USB2. Getting AmaRec is your choice, I can't use it since it's the reason why my audio doesn't work ( :( ). And it blue-screened my computer several times. If you do get AmaRec, and your computer does blue-screen, then don't use it. Deinterlacing can be switched to retro by right-clicking on your cap card scene in OBS (I don't know about XSplit), clicking on "Deinterlacing", and clicking on "retro".

4. ^ A little out of context, but hopefully you won't have any more troubles. Happy gaming!

also input lag is a big factor for retro consoles on modern tvs but with N64 games using the original console i experienced no il at all

like what Mars02 said i recommend the Sony Trinitron

i found a sony trinton on the side of the road

I doubt that would work.

CRTs are fairly tough when it comes to TVs, if there's no noticeable damage or any rattling coming from the inside, it might just work.

Mars it happened to me to cause u had amarec live installed

How do you know I had AmaRec Live installed? And I don't have AmaRec Live installed.