The massive digital switchover programme being co-ordinated across the UK right now is nowhere near the last word in digital TV. After all, it only just includes hi-def, and doesn't make any allowances for mobile TV, or moving Freeview onto broadcast standards that make the most of its very limited bandwidth.
In fact, the UK doesn't even have a plan for digital TV beyond 2012. Media regulator Ofcom's plans stop abruptly at this arbitrary date and, officially, it's not even working on a long-term plan. Fortunately, members of the Digital TV Group and the European Broadcasting Union have gazed into the next decade to what they call Digital TV 4.0.
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