Was unsure about the change from Guy Flanagan to Aidan Turner in Being Human, but having rewatched the pilot I think Aidan Turner ended up with and edgier performance. Was also disappointed that Andrea Riseborough didn't return as Annie, but in the end Lenora Critchlow won me round and I loved her interpretation of the role. But am very glad they kept Russell, as I think he made the show. Oh and also loved Jason Watkins' Herrick, and preferred it to Adrian Lester's. Was also utterly gobsmacked by discovering he was one of the gay wedding planners in Confetti. What a contrast!

And of course I have loved David Tennant taking over from Christopher Ecclestone as the Doctor (-: AM with Aaron on Tom Baker taking over from Jon Pertwee. Before DT he was MY doctor, but my husband and my best friend both a year older then me, disagree and prefer JP.

I know I just destroyed any street cred that I may have had by admitting to watching that show... I have mentioned that I watch some bad things, haven't I?

I can't think of any others... Good call on Neil Morrisey, Jane.

Oh- I preferred Hattie Hayridge to Norman Lovett on Red Dwarf and everyone prefers Robert Llewellyn to David Ross as Kryten, right? But I didn't like the recasting of Kochanski. C P Grogan was better than Chloe Annett in my opinion.

There better be a damned good reason for recasting, or rather, a damned good explanation as to what happened within the show. Because I'm not buying everybody else in the cast hasn't noticed the change.

Darrin Stephens and Gladys Kravitz of 'Bewitched', and Tony Nelson of 'I Dream Of Jeannie' (from Larry Hagman to Wayne Rogers in the sequel tv movie) - all of them can be explained away with Sam's magic. Toby in 'Strange'? From Adam of 'Torchwood' replaced by the original Toby (a twin cousin to Connor of 'Primeval', perhaps?)

I much prefer just scrapping the character entirely and going in a new direction. Best examples - from Frank Burns to Charles Winchester and from Henry Blake to Sherman Potter, both in 'M*A*S*H'. From Coach Pantussi to Woody Boyd on 'Cheers'.

'Night Court' replaced Selma Diamond's bailiff with a new one played by Florence Halop, but it was basically the same role. Still, I was okay with that. When they brought in the black woman after Ms. Halop died, they finally took a gamble.

So my all-time favorite "recastaway", keeping the same role but with a new actor? George Schumway, father of 'Mary Hartman, Mary Hartman'. He was played by the "schlump" Phil Bruns, but when George fell into a vat of chemicals, plastic surgery transformed him into Tab Hunter. (And eventually back again.) It was so outrageous, I had to tip my cap to them.

It would have to be two brave men who took on Morse and Lewis though, wouldn't it? And yet if you read the books, they are nothing like the way Colin Dexter describes them.

No question of the best Sherlock Holmes. It's Jeremy Brett. It just is.

Jane's quite right about the Being Human recasting, especially Mitchell and Herrick.

Also, never mind the Doctor recastings, Romana I (Mary Tamm) to Romana II (Lalla Ward) was fab. Although the best bit of Doctor recasting was the first one, because it helped define the programme, and Patrick Troughton is still the best actor to play the Doctor (although DT and Eccles are very close behind).