Hopes for rapid restoration of subtitles across Channel 4’s other services after progress over the weekend, exactly one month on from a major incident that knocked out Channel 4.

A business led by Lord Michael Grade and ITV have been named as the frontrunners to buy Channel 4. A consultation over the future of the state-owned broadcaster launched in the summer.

The first customers to use the new Sky Glass TV service have noticed some differences in the channel line-up. Some channels available to Sky’s satellite customers are missing.

Subtitles, in-vision signing and audio description on Channel 4’s family of services may not return to normal until mid-November, according to Channel 4’s latest update.

As technical issues reach a fourth week, Channel 4 has provided more information on what’s happening. Red Bee Media, who are responsible, have apologised again to viewers.