Panlong 8-Way AV Switch RCA Switcher 8 in 1 Out Composite Video L/R Audio Selector Box for DVD STB Game Consoles

I have a 1995 sharp Catholic ray tube tv with rf port, will it work?

There is a ton of interference when i use this that isn't present when i connect console direct to the tv. what am i doing wrong?

Can this work with an AV-HDMI converter? AV output into converter into an HDMI switch? I had a Gamecube, Retron 3, PS2 and Atari Flashback connected.

I'm wondering how this will hook up to my tv?