Now I really feel old...
CHiPs was a show about two California Highway Patrol motorcycle cops. They used to film a lot of it on a portion of the 118 Simi Valley freeway before it was finished between Balboa Blvd and DeSoto in the San Fernando Valley. I grew up just about a block from the 118 on White Oak St, and as kids we'd go pester the production crews that filmed there, and ride our BMX bikes in the construction areas. A LOT of 70s and early 80s TV shows filmed their freeway crash scenes on that 5 mile (give or take a couple of miles) stretch of freeway, because it took CA 15+ years to finish it.
Seriously, when I was in kindergarten, they moved the houses along that stretch (about 5 miles). And it didn't open until I was in high school.