Original Nintendo N64 Or Gamecube Rf Out Modulator Adapter Switch OEM – The Game Island
Amazon.com: Nintendo 64 RF Switch/Modulator : Video Games
Amazon.com: NES/SNES/Sega Genesis Universal RF Unit Automatic TV/Game Switch : Video Games
Amazon.com: RF Modulator RCA Coaxial Adapter VHF Demodulator Converter w/Antenna (ANT) in/Out & Channel Switch for Roku Fire Stick PS3 PS4 PS5 DVD VCRs Cable Box AV Composite Video to Analog NTSC