What would have been the largest media merger at that time eventually collapsed over failure of the parties to agree on valuation.

But earlier media mergers have yet to demonstrate the magic of synergy.

In an era of high-priced media mergers, those could prove very valuable.

At the moment we have a plurality test which can be used to prevent media mergers when they are deemed to undermine the public interest.

It's not the media mergers that are murdering TV news.

"It may be the case that we should take politicians out of all decisions about media mergers altogether."

Net neutrality is also at stake when media mergers are occurring.

He was speaking of media mergers, but the comment applies much more widely.

Other big communications and media mergers have not sailed nearly so smoothly.

- Cameron has said that politicians should lose the right to take decisions about media mergers.