Either the installer did something very wrong or you've got a bad receiver. Call tech support and let them run through the usual attempted fixes. If that doesn't work they'll get someone out there or send a new receiver. (I'd wait until Monday to call tech support. Might not make a difference but I know I always have better luck with CSRs during US business hours.)
I'm looking at the "bad receiver" possibility at this point as well. When I go to "TV Activity" Tuner 1 shows as "Watching" and Tuner 2 and Tuner 3 show as "Available".
Last night I set up a program to record just AFTER I would be turning the DVR off; sure enough, the red light on the front of the unit popped on at the proper time and this morning the program had recorded and was in the proper folder.
I'm also unable to access programming via the Joey. The "Acquiring Signal" screen pops up and that tuner shows "Lost Signal" in "TV Activity"
So, I don't know what's up. When the installer was here, both the Hopper and Joey worked fine. Weird.