The "Tribute in Light" memorial is seen in this 2013 Associated Press file photo. After receiving a call from a friend in 2002 while working on the set of "Who Wants to be a Millionaire," lighting ...

Also this week on the 4Wall Roundtable is the premier episode of LIGHT HUMOR, a series of animated shorts that take a humorous look at the world of lighting. Episode 36 will be available to stream on ...