TV antenna inputs expect a frequency (and voltage level) that comes from an atenna. These frequencies are extremely high, because only very high frequencies can be transmitted through the air.
The very high frequency, but very low voltage signal is decoded back to the original video signal by the TV.
arcade game PCBs dont have modulators like old home video games. The home games only had those modulators because that was the only input that TVs had back in the day !!
The very old games (like Computer Space) used a TV but the guys at Nutting/Atari were smart enought to mod the TVs so the (low frequency) video signal was "directly injected" BEHIND the high-frequency demodulator.
The reason to do this is simple: picture quality is greatly reduced by (in this case) unnecessary encoding and decoding PLUS it was cheaper to omit a modulator.
Anyway, you cannot put a standard videosignal into an antenna connector.
By the way that Super Bug is missing the overlay.....the bug is supposed to be yellow
