What components do I need?

New here, not sure if this is appropriate for this sub but I have a question. What components do I need to connect a cd player and turntable to the same system of speakers? And preferably to my tv as well. I haven’t bought anything yet, but it will probably be an automatic turntable (built in pre -amp?) but other than that I have no specifics, I just need guidance on what to look for. And I’m on a budget so I’ll be looking at cd players and amps and whatever else I need second hand.

I’ve tried YouTube videos and everything but I just can’t really understand and everything seems so complicated