Texas has a long running anti-road litter campaign, known as Don't Mess With Texas. One of the adverts features the (then) Confederate Air Force's (CAF) B-17 Sentimental Journey.
Unfortunately I can't embed the advert, but if you click on this link, you'll get probably the best Warbird advert ever.
"Somebody up there's gonna be watchin'."
If you think about getting that all to line up in real time (hiding a flying B-17 in a valley isn't easy at the best of times!) it must have been a tricky advertisement to film as well. Originally, it was going to be bigger. CAF pilot Randy Wilson recalls on WIX here;
"I flew the FM-2 Wildcat during the filming of the Don't Mess With Texas commercial and Reg flew the P-51D Mustang "Gunfighter". We were asked to fly directly behind the B-17 as it came over the hill but with the B-17 down in the dirt we were eating its turbulance and never made it into the final cut, despite several attempts. Looking at my logbook, the video was shot on 24-25 October, 1990."
Currently they are taking votes for the best advert in the series, and as I write, the CAF one is at No.3. You have to keep clicking to hit your preferred choice, but you can vote here... You know which one to vote for.