RCA and Sharp TVs will remember the S-Video setting after powering off by remote or TV button. They will lose their settings if power if lost (unplugged or power strip is powered off).
I have 3 surge strips in my cabinet. 2 are controlled by 1 main power switch and the other strip is always on. I use that strip for the TV, Dreamcast, headphone transmitter and the work light inside the cab.
That way those components always have power and can be turned on with the rest of the cabinet turned off.
BTW - Don't spend more than $250 for a 27" TV with S-Video. If you spend a little time looking for a sale you will save money. I just bought 2 27" Sharps from the Wiz for $249 each. However, they were priced on the shelf for $279. So I asked the salesguy for the cheapest 27" TV with s-video. He told me the Sharp and I said no, I have to have it for $250. He looked up the price at the register and told me they were $249. So I took 2 of them.
Rick
My TV is pretty old & I have to either use the remote or menu buttons on the front panel to switch it to "video in".