Can't say I ever saw
Blast From the Past, but Pasadena's larger claims to fame have to be the Rose Parade and Rose Bowl, not to mention the song,
Little Old Lady From Pasadena.
Granada Hills has become land of $1-$2+ million dollar homes as has much of the Valley. Areas change so much over the years - I'm always shocked when returning to my east coast home towns. Most are barely recognizable to me now. The last 50-60 years brought a lot of building, rebuilding and gentrification to the US.
I lived in the Hollywood Hills (near the sign) in the early 70s. H'wood was such a sweet spot for young people. Low rent, plenty of jobs, terrific nightlife including fun restaurants, comedy clubs, and great music at The Troubadour, Whiskey A Go Go, Greek Theater, Hollywood Bowl, Starwood, etc.