Is that real ? If so, I can't believe that the BBC or whoever allowed that to be shown on TV. It's really funny though. Time to get back to work and play with my twanger!
OMG "Would you like to blow my pipe while I pluck away?" "No, I was blowing with Roger all last night. Would you like to play my maracas?"
if you look through the responses on that page http://www.htw.ndirect.co.uk/tvoffal.html is listed. On it there is this description: "Much of the source material used by TV Offal comes from a little-known (outside of the tv industry) phenomenon known as 'Christmas tapes'. These are unofficial compilations of tv material made by tv station staff in their spare time which often comprised of a collection of 'outtakes' (presenters fluffing their lines, etc.) but also may include clips specially recorded for the tape, originally intended for the staff's own amusement only and not for transmission; the clip showing the Rainbow (kids' tv show) team letting off steam with 'the bad language' being a prime example. The excerpt used in the pilot episode came from a Christmas 1978 tape produced by Thames Television staff."