Channel 5 HD will launch on Freeview and Freesat channel 105 on Wednesday 4th May, joining the free-to-air platforms a day after encryption was lifted on satellite.
DO I NEED TO RETUNE FREEVIEW FOR THIS NEW CHANNEL?
Provided your TV or box has removed BBC Three HD from channel 105, it should automatically add Channel 5 HD. Go to BBC One HD, wait 10-15 seconds and see if C5 HD has been added. If not, you'll need to retune. You will also need to retune if your TV didn't automatically remove BBC Three HD (e.g. some Samsungs), as it's possible your TV will add C5 HD to the end of the channel list...