Greetings - It's very simple so I'll show you how and then I think it may be another problem (nothing broken).
You need to plug the corresponding color cables into to outputs on your player I've circled above and then into the corresponding inputs on the TV. You've probably done this correctly.
PLUS - You have to, using the remote for the player, set the source to either DVD or VCR and then you have to, finally, on your TV set the input (with the remote) to what is called probably VIDEO or VIDEO1. If there is still nothing on the screen keep (with the DVD or Tape playing) hitting the TV remote input button until you see an image or you've come around to where you started.
Unless something is broken (unlikely) you should be able to watch DVD's or Tapes depending on what input you select on the player.
If it's not working you've somehow missed a step or the Video input on the TV is called something else. If that happens come back here and give the player AND TV brand/model info and someone will be able resolve your problem.
Good Luck and thanks for using Fix Ya.