Doug,
DishNetwork offers a number of satellite receivers with built-in DVR's. These work like ReplayTV or TiVo, but currently Dish is offering free subscriptions through 6/2003 for the "Personal TV" part of the package. Of course, you still have to pay the monthly subscription for the satellite programming. The advantage of these systems is they record the raw data stream from the satellite receiver, eliminating one pair of D/A and A/D steps in the recording process (compared to external DVR boxes connected to sat. receivers). The internal hard drives are standard ATA/IDE, so you can swap in a bigger disk for longer record capacity (like the 20-30 hours you mentioned). Seems like one great feature of all of these is the ability to pause live TV, in addition to recording programs for time-shifting.
If you're interested, check out:
http://www.dishnetwork.com/
They can point you to local vendors of Dish packages (for example, Costco and Sam's Clubs both carry Dish products).
uBid.com has also been auctioning reconditioned Dish model 7100 and 7200 receivers, which include all hardware (dish, cable, etc.) needed if you're a first time subscriber. These have been going for $100 or less, and you have to sign up for one year of programming at $40/month:
http://www.ubid.com/cat/1019.asp
I've had Dish for a year and have been very pleased (compared to our crummy cable TV service). Just ordered a 7100 as a second receiver, so can't yet say if it's as great as promised ....
If you only watch a few hours of TV a week, this would certainly be a more expensive option than a TiVo with their monthly fee ... But, if you'd like to try out satellite TV, this would be an option worth considering.
Steve
This message has been edited by SteveLee on 05-12-2001 at 11:36 PM