I can't say what you do or don't have available in your area, but in mine, Spectrum isn't even running Coax anymore, it's all fiber to the door. I literally can't plug an analogue TV into the "cable" and watch TV.

Modern "Cable", isn't. You only need a WiFi router and a smart TV (or a computer, phone, basicially anything capable of playing streaming media).

/ Edit: My apologies, I didn't realize you were trying to steal cable. In that case, call Spectrum and have them do a proper installation. What you're describing wouldn't normally be your problem if this was all above-board.