Otherworld 

This was a Sci-Fi Series put out in 1985. The family is in Egypt, the take a tour of a pyramid … and fall through a doorway brought on by an alignment of some planets … into another world enter via a Joshua Tree like area called the  forbidden zone. A “Nazi like” guard in a space car comes driving up in the desert between zones.
There is a super long intro segment on this one. 

http://youtu.be/fHDg_Vo72j0

http://youtu.be/T1tw38JYrio

http://youtu.be/V5MJ_Drqqyc

http://youtu.be/sP-pUClK3z0

http://youtu.be/RfWxaGVwgMQ

 

Episode 2

This episode they had to create identities as the Hardins.

http://youtu.be/vHUdm8A6IMY

http://youtu.be/xZrCVKzid-Q

Search YouTube for the rest of the segments on this one.

 

In this episode there is no good music left in the “zone.”
http://www.youtube.com/watch?v=cpqBu3nEdnU&feature=share&list=PLD28AAE0BED49F929