Surely there should be a statute on FoI requests. Such a request may interest a few here but I really don't think it's in the taxpayers interests to have employees at OFCOM fulfilling it.
It might be worth a shot but I'm not confident that the ITC even gave consideration to a 'hard' choice between TVS, CPV, and Carlton when Meridian was an option on the table.
According to Wikipedia, CPV failed on quality grounds whilst Carlton appears to have been outbid judging from the size of their bid and no additional comments. Therefore it might be better to phrase the FOI request more towards why CPV failed on quality grounds. Also ask if Meridian was chosen over Carlton purely on the size of their bid or whether there were other factors.