[Orry Verducci]

They stay on air fir around 30 minutes after EPG updates, before getting switched off.

Sky Mix however carried on broadcasting in SD off the EPG.

That will be for Freesat's benefit. Freesat set top boxes and TV's ususally take a little longer than Sky boxes to pick up the bouquet changes. Usually it's within the hour but I have seen occasions where a box/TV has taken a couple days for some reason.

Generally services will be kept active for a week after it's removed from the EPG.

The BBC have announced there will be a caption from 8 Jan 2024, but exactly how long it will stay is unknown.

The channel 106 on Freesat, that us now no longer in the EPG, is an MHEG slate, not MPEG2 so is invisible on most equipment. I expect BBC to transmit an MPEG2 caption with the downtime music from 8 January. For exactly how long is the big question

Have they announced there will be a slate? It really wouldn't surprise me if they just switch it off, especially now they've reported having fewer calls than expected.

I can definitely see them putting an MHEG slate on Freesat 101, but when it comes to Sky I can't see them entertaining it. Sky don't like off air slates, and are usually very quick to remove services in situations like that.