Strange set of options there - mostly shows that are still on, and no mention of some of the older classics that still hold up to, or outperform the newer shows.
Ray mentioned Dr Who - which has got to be one of the greatest, but my vote would probably go to the original Twilight Zone. Just a stunning show, that is almost more shocking for its age that one might expect.
Also, how about Red Dwarf (highest rated British PBS show ever, apparently - although I am not sure my source on this is correct!), Hitch-hikers Guide, Outer Limits, or a personal favourite Mystery Science Theatre 3000?