'Had a google and apparently its to do with ITV classing +1 as a separate channel and only paying for the rights to show it on one channel (which seems a bit strange as its their programme - not a film) unless its to do with buying the rights from the production company itself?'
The above is from Toothfairy1977 on the MSE Forum from 2011
and, of course, if it's "interactive" and viewers can't actually interact with it (it being a recording).....nobody's making any money from it!
Cynical, who me?