As someone pointed out already, this is indeed in the valley on the corner of Woodlake and Justice.... here is a link to Google's Streetview of the same view seen at time 19:15 -- even the mountain in the background has the same contour.
I hope the link works! It's quite long (the link), but It's crazy how much things have changed!
http://maps.google.com/maps?oe=utf-8&client=firefox-a&ie=UTF8&q=8000+n+woodlake,+los+angeles,ca&fb=1&gl=us&hnear=&cid=0,0,2324767816913930818&ei=uvqPTO-JIMT6lwe9y_km&ved=0CBMQnwIwAA&hq=8000+n+woodlake,+los+angeles,ca&ll=34.215954,-118.632174&spn=0.007807,0.021136&z=16&layer=c&cbll=34.216045,-118.632179&panoid=YZ_OOmupg-WXERbrEUNYuw&cbp=12,242.49,,0,5.03
By the way, I love these old shows, they're the best!!!!!