Vancouver's Teen Angel and the Rockin' Rebels did this national TV ad for Teenburger Week in 1975. Ironically the only market where the ad was not shown was Greater Vancouver. At the same commercial shoot, the first commercial for the iconic A&W unicycle riding bear was filmed. However the unicycle riding performer was several hours late, so the film crew had extra time to make a really good clip.
For physical events that happen at a specific time. For example a concert, or dance performance. If there are multiple shows, you can still duplicate your event to cover them all.