Barebone

Hello, I have an VCR, one DVD and a digital satellite receiver. I need to buy DTT. My idea is to buy a media center or barebone. I need a DVD, not problem, DTT (Digital Terrestrial Television) and TV analogical, and satellite TV. I’d like to know if I can replace my DVD, my digital satellite receiver, the DTT with a barebone o media center. I’d like to see a program and record another.
Thank you.