I have an old Panasonic receiver (Model: SA-SR25) with monster cables that are connected to the home theater. I just got the Samsung 65" QLED 4K TV (QN65Q8FNBF) which doesn't have any way for me to connect my receiver. Any suggestions on how to connect my TV to the home theater?
TV has digital optical audio output. Receiver has digital optical audio input. You need a toslink optical audio cable.
Check the TV manual on how to turn on and use the optical output.
Check the receiver manual on how to use the optical input.
If you were using an analog connection on your old TV you can look forward to much better sound.