If you Lease a new VIP receiver, Either a 612 or 722, E* will install all the required DPP equipment to make it single wire DVR. Not to worry!.
From the Unconfirmed rumored price increase, You might be better off with a 612 to save a $7 per month Fee.
612 are going for around $75 installed, But a Commitment is also required.
they are 30+ Hours HD recording, I say Plus because I had about 39 on mine at one point, with still a little room left. It has no PIP,and very limited interactive features.
Its Rumored to carry a new $10 per month fee.
722k will run you around $125 to lease
It serves 2 rooms DVR 1 SD and 1 HD.
Its 55+ HD hours ,also has the most interactive games and channels over the 612. It will do PIP in Single mode, But will run you a $17 per month Fee
Both will do Video On demand with ethernet connection or wireless.
Both will do remote recording through I phone or computer.
Both can use same External Hard Drive option as well.