So I'm testing a TI99 I just got. It came with an RF adapter but even my portable tvs dont have the connection or adapters are a pain. I looked up the video output and some people claim to make video cables that are compatible with Atari 8 bit, Commodore, and TI99. The 5 pin din LOOKS similar but did not want to mess anything up without checking and this news justified a go at it. I have a Commodore monitor with an SVIDEO cable input I run a C64 and 800XL from just fine but the TI99 video out was black.. ok maybe because it is outputting standard yellow RCA jack composite. I have other Atari cables with 5 pin to composite/ rca audio male ends but that also did not work. Does this mean the ti99 I got for a song untested has issues or is there still a video output aspect I may not have considered?