When I checked I found that access to my street will be OK on Saturday, so I've booked delivery that day and hopefully all will go well. Hopefully....
Oddly I feel more confident of my decision buying this than I did about the fridge-freezer. Of course part of that was that a fridge-freezer is a fairly boring piece of kit and I could have probably got a year or two more out of the old stuff - the door hadn't actually fallen off the fridge yet, for example, though it was distinctly wonky, whereas I've long wanted a really big TV.
Anyway, more undoubtedly to come.
I'm going to have to check if any of my family will want the old TV, assuming that this is OK; if not, is there anyone reading this who might want a fairly elderly 32" widescreen TV that works OK but isn't anything special? And can collect it from central London?
Update: just got home to find a message recorded by the card security people, who are of course a little surprised that I've spent more money in the last week than most of the rest of the year. Commendably quick on the uptake, I think.