This may seem like a dumb question, but I have an old receiver that has only analog inputs and a coaxial input for an FM Antenna. I recently bought a TV that only has optical out. Would i be able to buy an optical to coaxial converter and plug it into the FM antenna spot on my receiver. It doesn't really make sense to me, but I figured it may be worth a shot. Thanks.
"an optical to coaxial converter and plug it into the FM antenna spot on my receiver"
Is the connection you're trying to make for TV audio through the receiver ? If so the TV may have an analogue headphone output or preferably RCA-type socket line output.
Either could be fed into the line input (AUX, TAPE) on the receiver.