| BBC code+ linked to episode hint | Episode Title | Alien in episode |
| Oods can be odd with improbabilities(2.8) | |
| Devilish goings on(2.9) | |
| Hey it's Peter Kay as a fat monster(2.10) | |
| Well, The olymics is going to be good in 2012, provided this doesn't happen(2.11). | |
| spooky how ghosts can be from a parallel world(2.12) | |
| 'this is not war, this is pest control!'. title also shared with award winning song(2.13) | |
| GET ME TO THE WEDDING SPACE BOY!(3.x) | |
| Martha on the moon with Judoon(3.1) | |
| Carrionites and a bit of Shakespeare(3.2) | |
| well, these guys are thankful that the conjestion charge was removed(3.3) | |
| a trip to Manhattan? sure why not, Daleks only go to London(3.4) | |
| the Doctor gets a bit of a shock, and i'm not talking about the lightning strike(3.5) | |
| Shockwaves aren't just made by machines(3.6) | |
| oh don't get pulled in otherwise you get burnt(3.7) | |
| are we Human, or are we Doctors?(3.8) | |
| Jane Redfern's lover isn't exactly in her league(3.9) | |
| Moffat's story makes you look at statues with more care(3.10) | |
| Masterful disguise at the end of the universe(3.11) | |
| Four beats to rule them all, well in the Masters case(3.12) | |
| This is Gallifrey/ Our Childhood was soundtrack for this epidsode(3.13) | |