Thirty years after the original series came to the end of its 12-year history, Hawaii Five-0 is about to burst back onto British TV. The new-look Five-0 kicked off in September last year on the American CBS network, and will debut on Sky1/Sky1 HD in the UK in February.

Sky hasn't generally been synonymous with top TV drama, but its new channel, Sky Atlantic HD, is aiming to change that. Launching on 1 February, the channel has been built around Sky's deal with the American HBO network, which means viewers will get access to the entire history of The Sopranos, Curb Your Enthusiasm, Six Feet Under, Sex and the City and The Wire.

“Television is pretty awful at the moment,” said Eileen Atkins the other week. “Is that because I'm getting old?” Age wouldn’t dare to wither Dame Eileen, of course, who has just bounced back in fine sparky fettle in the BBC's remake of Upstairs Downstairs.

The American networks have so far been able to resist the stick-insectish charms of David Tennant, but the BBC would probably start up a new channel just for him if he asked them. In this new four-parter, his comeback appearance after handing over the keys of the TARDIS to Matt Smith, Tennant plays Dave Tyler, a successful Glasgow photographer married to teaching assistant Rita (Laura Fraser).

If you can’t play a cop or a mass murderer, steer clear of the acting profession. That would be the logical inference from the swarms of cops’n’killers series cramming the TV schedules. You’d think we’d have had enough, what with Luther, all the CSI franchises, and simultaneous home-grown and American versions of Law & Order squabbling for attention, but they just keep on coming.

Chris Ryan and Andy McNab are the Pepsi and Coca Cola of gung-ho, modern SAS war fiction, a lucrative genre that these one-man brands have carved up so effectively between them that it would take a gate-crasher of Nick Clegg-like proportions to threaten their duopoly.

Both men retain their pseudonymous existence, more for the self-publicising drama of it than for security reasons - although Ryan rather ludicrously asserts that his life would be at risk if his real identity was revealed. Literary critics aren’t that savage, surely.

Another day, another plot to destabilise the planet. Early scenes in the eighth series of 24 show us a mellow, semi-retired agent Jack Bauer (Kiefer Sutherland) playing grandad to his daughter Kim's child, and planning to return with them from New York to LA to re-establish his family ties. With his career in the Counter Terrorist Unit (CTU) behind him, Jack is thinking of taking up an offer of some private security work.