Hi @Chanders
Welcome to the Sonos Community!
Only the Sonos Amp can connect to both your TV and provide Line-In for vinyl or CD, but it requires that you have wired speakers, and only provides 4.1 sound at most.
I would therefore recommend you purchase a Sonos Arc, our flagship Home Theatre speaker. You’ll want two surround Sonos One SL speakers and a Sub (if preferred) to go with it, and all these are available in a bundle as a Surround Set.
This will provide 5.1.2 Atmos sound (with compatible TV and content), including 2 upwards-firing speakers that reflect off your ceiling to provide 2 vertical channels.
To play CD or Vinyl, you’ll need a Sonos component with Line-In. If you are at all interested in playing Sonos sources on your existing Hi-Fi system, you’ll need Line Out too. For this I recommend a Port, as it has both. Connecting a Port to (for example) the Tape In and Tape Out will allow it to play CD/vinyl/tuner sources on Sonos speakers, and play streaming services to the Hi-Fi.
If you’re not concerned with streaming to your Hi-Fi, a Sonos Five may be a better choice - it has line-in and also serves as a self-contained speaker. The Line In on any Sonos product can be shared to any other Sonos product on the same system.
Please note that each Sonos component that has Line-In only has one - if you need multiple sources connected, you’ll need multiple components with Line In, unless you hook up a Hi-Fi - then the input selector on your Hi-Fi would determine which source goes to Sonos. Otherwise, you’ll need a second Five/Port or will have to swap the connections when switching sources.
Any turntable that connects to Sonos will need to be pre-amplified. This is sometimes built into the turntable, or your Hi-Fi would perform this function. There are 3rd-party pre-amps available should neither of these be an option for you.
I hope this helps, and happy shopping!