The BBC has released a new trailer for Doctor Who‘s season 6.5, set for launch August 27. If you’re like me, you’ll start watching and say HEY I’VE SEEN THIS – but wait! In and amongst the clips you’ve seen are, carefully cut in, some that you HAVEN’T SEEN before today. But you’ll have to watch carefully so, as a previous Doctor so famously said, DON’T BLINK:

BBC America is also weighing in with ways to keep us entertained while we wait for the second half of season six. They have produced three specials – one of which airs after the new episode – that they are calling “Doctor Who ‘Best of’ Specials”. Here’s how they describe them in their Anglophenia blog:

Which Doctor Who monster would make the best roommate? What’s the most fashionable Timelord headgear, fez or Stetson? And, of course, the age-old question, pool in the TARDIS or Vortex Manipulator watch?

BBC America put forth these very questions to celebrity Doctor Who fans as well as to devoted viewers who packed the exhibition floor at last month’s San Diego Comic-Con. Their frank and funny answers will be featured in three original specials the network has announced to feed the Whovian need as we count down the nanoseconds until the August 27 fall premiere. Here’s the schedule – mark the calendars and set those DVRs:

Doctor Who: Best of the Doctor – Saturday, August 13 at 9/8c.
Doctor Who: Best of the Monsters – Saturday, August 20 at 9/8c.
Doctor Who: Best of the Companions – Saturday, August 27 following the Doctor Whopremiere episode, “Let’s Kill Hitler,” which airs at 9/8c.

The lineup is a Who’s Who of DW fandom: Alison Haislip (The Voice, G4 correspondent),Chris Hardwick (Nerdist), Scott Adsit (30 Rock), Natalie Morales (Parks and Recreation), Eugene Mirman (Flight of the Conchords, Bob’s Burgers), WIRED Magazine senior editor Adam Rogers, singer-songwriter Amanda Palmer (Dresden Dolls), comedian/musicianReggie Watts, Danielle Harris (the Halloween franchise), comedian Paul F. Tompkins, former NFL player Hugh Douglas, and guitar hero Scott Ian (Anthrax). And Who fan fave Mark Sheppard — Canton Delaware III from the two-part season opener — will also be joining the festivities.

And here’s a clip from the “Monsters” special:

Ooo, Mark Sheppard is in this! Ok, marking my calendar. What do YOU think is the scariest Doctor Who monster?

Doctor Who season 6.5 will premiere on August 27, 2011 at 9/8c on BBC America.