Argyll & Bute, Rosneath and parts of central Scotland have completed the first stage of the digital switchover.
Switchover began in the early hours when analogue BBC Two was permanently turned off at the Darvel and Rosneath transmitters serving the region.
The start of the digital switchover means that 50,000 viewers in digital blackspots such as Port Ellen, Campbeltown, Girvan and Bowmore can get Freeview for the first time.
The change requires every Freeview viewer to retune their TVs and boxes, in order to regain BBC TV channels which are missing.
The switchover process will be completed on 25 May, when the remaining analogue channels will be switched off. Further Freeview channels from STV, ITV, Channel 4 and Channel 5 will then be available from local transmitters for the first time.
Links open in a new window. The DTG is not responsible for the content of other web sites.