There's nothing in our broadcasting law that says in the run up (or in campain mode) to a General Election that we have to have a televised debate with the Prime Minister and the leaders of the opposition parties.
In having the #Makedebateshappen it was a way by Sky to drum up support for something to be put into law, and to get something going through the grinding wheels of Westminster.
Once an on-line petition (on the official Government website) gets over 100,000 signature (proper ones, the obvious joke ones are filtererd out) then it's discussed away from the Commons chamber to see if there's any MP that want's to 'take it' as a formal private members bill to the commons, where, if there's time it'll be debated (note - don't get the image of a packed House of Commons like you see on Prime Ministers Questions) as it's usual on a Friday - it'll be any member of parliment interested, or deciding to chip in whilst waiting their turn to bring their own bill to the Commons.
If it's debated and passed, then there are a couple more hurdles for it to pass, before it's law.
Clue - Highly likely, as in the Senate, time wasting/Jerrymandering of other bills will slow it down, so it's dropped from the order paper and it'll be quietly forgot about - so stands no chance of becoming an enforceable law for the leaders of the various parties to have a televisied debate during a General Election campain.
My user name might look like Hatton Cross, but it's pronounced Throatwobbler Mangrove.
Rkolsen and London Lite gave kudos