The UK government is going to have to spend £108m to install filters in a million homes to prevent TV interference from 4G mobile signals.

In some cases more than 10,000  will need to switch to satellite or cable TV services in order to avoid degraded picture quality. The government has decided that houses that cannot receive these alternative platforms will receive up to £10,000 each to "find a solution".

Costs will be met by the winner of a spectrum auction later this year. The winning bidder, or bidders, will be required to pay for the costs of making sure viewers of digital terrestrial television (DTT) will not be affected by the changes. Last year, media regulator Ofcom estimated that about 760,000 homes could be affected.