@DivaEnergy re Nolans/Cruising. I fear I must provide a correction that the new show (in which the sisters talk relentlessly about how they don't remember the lyrics to that song in which they repeat the same words over and over) is actually on something called QUEST RED...
... And NOT Channel 5. It is, therefore, not a replacement for Jane but a CHEAP SLIMY KNOCK OFF. Also there is clearly nobody else on the boat so I suspect it was filmed on a cruise to (eg.) Newcastle (I have been on this cruise)...
... Or perhaps fully on an impressive "green screen" facility in South London, perhaps due to the coronavirus pandemic...
... In addition I must present this evidence from "Noel's Telly Addicts" in which four of the more prevalent sisters sing the song in JAPANESE. I would therefore suggest the narrative of them being poor at remembering lyrics is a storyline manufactured by QUEST RED...
... And should be investigated immediately and to the highest extent of the law. Good day to you.