AA sale was last July, to private VC firms. It was bought way back in 1999.
Centrica definitely have dealings with Macquarie, who also have dealings with ntl. So Centrica could be paying Macquarie for power who then use the money to pay ntl for the broadcast deal. Forget about the middle man and it looks like two deals are actually one.
Centrica and ntl are both members of Otelo (Office of the United Kingdom Telecommunications Industry Ombudsman), but so are seven other major telecoms players, most of whom have deals with each other in a greater or lesser degree. Nothing out of the ordinary.
Perhaps we could have a snippet of this famous intranet?