That commercial is misleading you couldn't possibly have 2000 hours of shows without running low on space
If there were mostly HD recordings, maybe on SD you could, but if it were mainly 2 hour movies or sports then it will fill up real quick,
it would depend on longevity of the show, and knowing how long these PT shows last nowadays(unless on PTAT) I highly doubt that you get that much, plus you don't get the full advertised 2tb anyway
But I shouldn't take this commercial literally as it's all marketing, just like Directv or any other ones.