Just seems to be a load of BBC repeats. I've not seen one non-original show on there yet, and it's hard to name one that's non-BBC, which means having to sit through adverts that weren't there the first time round. Red dwarf just isn't the same with a load of advertisements rammed down your throat half way through.
As to why they named it Dave: it's seems obvious to me that they did it so we'd remember it. It's why this thread was created wasn't it? Better than "generic channel 74" or something...