We already have 'regional' DAB here in lovely Liverpool. Apparently it's quite full up (with what, I know not!). However, there's a brand new mux opening up in a few months with a smaller footprint. It is 25% owned by Muxco (An Arqiva and Folder Media joint venture), UTV Radio (GB) Ltd (25%), Dee 106.3 Ltd (25%) and Town & Country Broadcasting Ltd (25%), and will be sited on top of the Radio City tower (Radio City is the heritage station, now owned by Bauer, studios in a large 'tower' with panoramic windows, with Radio City 96.7 in large writing all over it - can be seen for miles, brilliant marketing move on their part.). The new mux will carry the output of UTV's Juice FM, hitherto FM only in Liverpool, and, one could argue, a fierce rival of Radio City (and wiping the floor with them). It also puts Dee in exactly the same footprint as Juice, and therefore in competition. At the moment they are completely different FM TSAs.

It seems to me there's a phenomenal amount of different companies and organisations working together to do this, and plenty of opportunity for falling out or shafting each other. It's just too 'busy' and too complicated, imho.