In the last 4 years, up to this day, the cable companies have made a big deal about a multiroom DVR.
Why? I"ve had multi-room VR since 1984 -- would have had it earlier if I'd had a VCR earlier -- when there was only VCR, and it plays in 7 rooms, plus my attic or porch if I want, not just 3 or 4 rooms like they advertise. And it cost about 40 dollars in parts. With a fancy signal amplifier and using only home runs, I guess parts could cost 150. Either way, no monthly charge.
Just in the last month, from Verizon, and advertised on TV "The Home Media DVR service is an upgrade to the FiOS TV DVR and provides the multi-room DVR feature that is an excellent choice for people who have more than one TV in their home. With Home Media DVR, you can watch a program recorded on your DVR from other TV sets in your home that are connected to a regular (non-DVR) set-top box. Requires one or more Verizon-provided set-top boxes that are connected to TVs in other rooms in your home."
2009 This one is from a columnist at ZDNet, Sean Portnoy, who nowhere mentions that you can do this yourself, or hire a guy for an afternoon to do it. I guess he doesn't know or woudln't get press-releases if he didn't back up their marketing.
2006 " Verizon adds multiroom DVR The new multiroom DVR, made by Motorola, lets customers view recorded programs on up to three televisions at once."