Freeview users are set to lose nine channels as part of a major signal switch off.
It comes as one of the TV signals is to be switched off on June 30, to pave the way for 5G mobile technology.
While some channels will be changing, others will be leaving Freeview for good.
Among the channels to close include BBC News HD and QVC HD.
In a statement, the BBC said: "As a consequence of the closure of COM7, BBC News on Freeview will be available only in Standard Definition from the end of June 2022.”
A Freeview spokesperson said: “Since the decision by Ofcom to make more airwaves available for mobile data, the Ofcom license for some channels broadcasting on Freeview has expired.
“This means that affected channels are making changes to the way they are broadcast moving forward."
Among the other channels to leave Freeview altogether include PBS America+1, More4+1 and QVC Beauty HD.
Forces TV, Quest HD, CBS Justice and FreeSports are the other channels that will soon disappear.