There were breaks of various durations from 1'00 to 3'00 (4'00?), and there were also different combinations of News, Weather, Business etc some with/without certain segments so that if some of the data was out of date you could usually avoid a segment until someone at Ceefax could correct it. The Weather segment was often substituted for the News segment ISTR but wasn't in the main combinations of segments used by default, hence it's rather rare appearances on air.
If all else failed, you could choose to mask the incorrect bit of the break with a menu or if you were feeling very clever one of those moving flag segments from the other laserdisc.
Staggering the trouble we used to go to, to fill an unsold commercial break.
The ABF survived the 1999 rebrand in that Mac/Laserdisc form and provided break cover with the now infamous bit of David Lowe music that was released on CD. I was told that the 'Festival' BBC Prime rebrand and the 1999 BBC World rebrand used some of the very last blank laserdisc stock in the world (that could have been BBC Urban myth though). Eventually, something major broke in the ABF system (can't remember what but it may well have been the fact that Ceefax stopped providing Business, Weather & Sport content to BBC World teletext...) and we had to use a generic breakfiller for a while until the Dynamic Junction system was ready to air.
And if we thought the ABF could be prone to the odd wobbly, the DJ was a whole new story...
Great post - the weather part seemed to always be included in the 1256-1259 CET break on Saturdays for some reason.
News Headlines was always the first two headlines and descriptions word for word on BBC World Text page 101, Sport usually the first paragraph of two of the articles from page 121 onward and Business was usually the first paragraph on World Text page 141/142, plus the market data as seen on World Text page 150 onward. The Coming Up screen showed word for word what was on BBC World Text page 201, except the page reference numbers, and it was in GMT onscreen, rather than CET on teletext . Once, when the clocks changed, BBC World Text page 201 had a line saying "clocks go back one hour" on the night schedule page and it made it onair in the coming up segment!!!
Between 1996-99, World Text mostly only had a three item summary of news on page 101, before Ceefax news pages 102-124 were added. Page 300 was BBC Prime listings and there was a travel segment with city breaks etc from page 500 for a short while. There was an advert for BBC World Teletext that often appeared on BBC World ad breaks (Europe only), before crashing into the breakfiller after 30 seconds.
from MB21: http://teletext.mb21.co.uk/gallery/ceefax/more.shtml