I've heard a lot about recording game footage and input delay, but I'd like to ask what setups speedrunners generally use for recording Metroid runs. Since most runners use NES, I'm guessing you use a CRT, which uses composite cables? How do you record that footage?

I have an Elgato Game Capture HD60, which only accepts HDMI input and output, so my first instinct would be to use two AV to HDMI converters in order to have composite cables as input from the NES and composite as output for the TV. Would this introduce as much input delay as just using an HDTV, or is that alright? If not, what other capture card would you recommend for recording older, non-HDMI consoles?

I use the I-o DATA GV-USB2. Front loaders have the RF and composite outputs that work simultaneously, so I run the RF to my CRT and the composite to the capture device. It looks good, but I've been having some sound issues (although I'm fairly sure its on the OBS side). Before that I used a like 5$ converter for like transferring VHS to dvd... and it was REAL flakey, but mostly got the job done. If you use a top-loader, I'm not sure what your options are, although I know a lot of people consider getting it modded to have component out.

As for input delay, it sounds like you are planning on playing on your TV and capturing the output... so is any delay on the capture that important? The only input delay i'd be concerned about is between your controller and the screen your playing on. If you care about having your stream capture synced with a webcam or something like that, you can always add delays to inputs in programs like OBS. In my case, the I-o Data capture has a small delay and is about the same as my webcam. I've never noticed them being off really in any way.