You'll have to stick a clock crystal into the socket that says XTAL. I know that. And my guess is that the socket that says 50/60 hertz is composite video out. If there are any part numbers on it, try googling it.
EDIT: Those sockets that say GND need to be grounded somehow. And the RF antenna socket is for... you guessed it! The broadcast antenna.
Just guessing here, but trying what I say probably couldn't cause too much harm.
EDIT EDIT: The huge knob probably selects the broadcast frequency/channel?
EDIT EDIT EDIT: Wow, I read that that thing uses vaccum tubes! Might want to check if all of them work, because those things are easy to kill! (Vaccum tubes are pretty much transistors, except they use gas instead of silicon or something like that. Very old)
I'd imagine right now you wish you were a cuttlefish...