I am a diehard football fan and I have to give you credit with your knowledge of that classic venue, the LA Colliseum. You must be from the west coast!

LOL - no, but thanks, APK. I do coach footbal (here on the East Coast)l and I'm a huge UCLA fan, so I've seen the LA Coliseum on TV many times. Alas, I have not yet seen this historic place in person. This episode was always one of my favorites because it took place in the Coliseum. That being said, other than having run the bleachers quite a few times at a college stadium, which allows me to attest to the time required to traverse the steps, I have no first hand knowledge of such regarding the Coliseum. For the details, I included the links where I gained the exact details (number of steps, average length of the National Anthem).

Cheers!

It's the same issue in Double Exposure. It would be difficult for Kepple to walk into the theater to murder White without being seen.

Yes! Unless he had a key to a back entrance or snuck in with a group or something, he would have to buy a ticket in order to enter the theater. The Magnolia was showing "High Plains Drifter" - a very popular movie that year. It's highly likely someone would have seen him entering the theater and it's likely he would have been seen sneaking into the projector's room.

Robert Culp characters on the show have a few things in common.
Even though one of them does it accidentally, two of them are blackmailers who kill their blackmail victims - "killing the golden goose" (as Jerry Parks would say).