[Radio_man]

According to Genome it ran until 2007. After that the idea of the main Sunday morning show going off air for 6 weeks or so was reduced to a shorter 2/3 week break for a few years

"News 24 Sunday" would not have returned in July 2008 anyway, as the News 24 brand was dropped in April 2008. But I'd say 3 years was a good run for the program.
And looking at Genome, it ran for 3 months in its first summer in 2005, with "Breakfast with Frost" ending on the last Sunday in May, and then "News 24 Sunday" running for June, July, August and into the first Sunday in September, when Andrew Marr then launched the new Sunday morning politics show.

It shows how strong the News 24 brand was in the mid-2000s for BBC News managers to think it was worthy of essentially giving N24 it's own show on BBC 1 every Sunday morning throughout the summer.