Plot hole: Live 50th anniversary episode, aired December 9th 2010 - When Sally is allowed into the rubble to comfort Molly as the firemen attempt to free her, one of them says they'll get Sally a hard hat. But when we see her talking to Molly in the rubble, she has no hard hat on and instead one of the firemen is holding his hand above her head.
Continuity mistake: In the episode where Katy, Carl and Todd go to see Badly Drawn Boy in concert, they go to the Rovers after the concert has finished. It's last orders so it must be 11pm. However, in the next scene in Martin's flat (when he is wondering where Katy has got to) the clock on his wall says 8 o'clock.