I have just joined the Tivo world the other day! I'm quite pleased thus far. However, now that I'm 'expanding' (and eliminating cable boxes) I have a question in regards to the best approach. Right now I have the following: 1 Roamio Plus 3 Mini's (4 tv's to be hooked up) I'm worried about tuner capacity if all televisions are being 'watched' live. Should I invest in another Roamio (basic?) to replace one of the mini's? And, if so, does it have the capability of 'sharing' recordings with the Plus? What are your suggestions?