In the past few days, we've seen: Time Out complaining to the Office of Fair Trading over BBC Worldwide's acquisition of its Lonely Planet rival; BSkyB and Virgin Media unusually on the same side while crying foul over the proposed Kangaroo online television service (which sees the BBC link arms with ITV and Channel 4); and commercial radio bosses once again hitting out at the levels of cross-promotion of BBC radio through its other channels.
To the commercial world at least, the BBC is behaving like a very bad boy indeed. Overstepping the mark is no longer a phrase that can do justice to its actions, the BBC's harshest critics argue, because it's already come right through its rivals' back door and is stealing the furniture.
So it's good to see signs of resistance from the commercial sector, which is not merely bleating, but actually attempting to do something about the BBC's encroachment. Lurking in the background is the BBC's status and its ability to continue to attract vast sums of public funding. The debate around this seems to be resulting in some sort of rapprochement between the BBC and Channel 4 (the BBC's chief operating officer, Caroline Thomson, this week suggesting that the corporation could look at "sharing some of the benefits of public investment and scale"). So maybe Channel 4, which is after an extra slice of public funding, will be steering clear of blatant attacks on creeping commercialism at the BBC for the near future.
But, elsewhere, Sky and Virgin Media are getting ready for battle on Kangaroo. Following requests for responses from the OFT, both broadcasters are concerned that content will not be made available to competitor platforms, stifling competition in a new sector. It promises to be an interesting process, mirroring some of the issues involved in Ofcom's investigation into the pay-TV market. Throw in media agency concern over a potential sales monopoly and Kangaroo could prove more controversial than it seems.
In addition, the BBC Trust is looking more closely at the issue of presenter pay (especially at BBC Radio), and when this is put together with the current breed of feisty leaders of commercial broadcasters, such as Richard Park, the chief executive of Global Radio, there is some hope for the fortunes of commercial radio against the BBC.
So while we can never really trust the BBC to stay on its own patch, there is at least the chance of greater scrutiny over its more dubious activities, as commercial rivals step up the pressure.