I could have just pointed out the Doctor Who takeover week, with its wall-to-wall programming and complete romps through the modern era of this delightful and durable sci-fi series, because I’ve seen all these episodes before. But no. I had to turn my TV to BBC America and get sucked in all over again, freshly impressed by the cleverness of the writing and the freshness of the acting. Few series can manage to be so funny, so suspenseful, so genuinely involving, and so unpredictable, all in the same hour. And the hits just keep on coming. Today, feast on the reboot’s Season 4 episodes, featuring Catherine Tate as Donna Noble, and end up shifting to yet another Doctor. And it’s all building up to Saturday’s new tag-team transfer of the show’s starring role – a role that began on TV back in 1963.