Yes, the BBC used a shorter edit of the closing theme for the first 18 months or so (for a while they used the opening theme at the close of episodes too).
Way off topic but interesting!
I think that was a seven thing. On the DVD's that were released a few years ago from around episode 100 they begin to use the opening theme on the closing credits on episodes at random but kept the sponsorship credits in at the end.
Occasionally Seven did that, but the BBC significantly edited down some of Ten’s 1986 episodes (those shown in Oct-Dec 1987) including removing recaps at the start and closing the episode with the opening theme. This was because the repeat showing was scheduled in a 17-minute slot in the mornings, from 9.03-9.20. This stopped in January 1988 when it was moved to 5.35pm.
If any of these BBC episodes (or UK Gold repeats) are on YouTube, you will see the shortened end credits. Also in this era, there was no “breaking glass” sound in the opening titles when the cricket ball smashed the Ramsay’s window, as the BBC re-dubbed the opening when removing the recap scenes.
Cut out the coupon in your TV Times!