Okay, I got a cheap HDMI switcher on sale from Amazon(in anticipation of needing one). Since I ordered that PS4, I tried it today with the PS3. Turns out it makes the screen flicker really bad.
I'll proly see if my bro wants the cheapie(if not, I may sell it) but any suggestions on solid ones that don't cost too much? Thanks. I'd rather not make the same mistake again.