From Wednesday, the vast majority of high definition boxes from all three brands were upgraded to receive the BBC's catch-up service via an over-the-air-download (OAD).
The following products can now access iPlayer:
Bush BFSAT01HD box
Goodmans GFSAT200HD box
Grundig GUFSAT01HD box
Users need to connect their receiver to an internet connection of at least 1Mbps and then access iPlayer via a link on the Red Button menu for any BBC channel. An instructional video is available here.
However, the upgrade will not be available on some early model Freesat HD receivers produced by Goodmans, Grundig and Bush.
Harvard International, manufacturer of boxes for all three firms, is therefore offering a replacement high definition receiver to anyone affected.
Following the OAD, any boxes that need to be replaced will flag up an on-screen message directing users to the Harvard customer support centre.
The new HD boxes will be offered without charge, but consumers will need to pay £14.99 to cover the costs of a courier service.