Cleaned the heads on my Betamax today, and we have a picture again! I took a nice long grab of the tape to get the 1990 ORACLE data off. That will keep my computer busy for a while.
In the meantime, here's a few pages from the Teletext 2005 grab I decoded whilst playing with Alistair's software. The sub-pages with the most instances are the best quality ones. Not bad, eh?