Hi All, I have a question in regards to a routine of Harry Anderson's, in which I want to know if he ever published. The routine I'm referring to can be found in this video https://www.youtube.com/watch?v=6fR2deVXE9E at about the 4:35 mark. I'm aware that he put out a similar routine called Jumbo Marked, however with that routine you do not have the turning over of the cards sequence.

I don't believe Harry revealed this effect or the effects he performed on the David Letterman show. I could never find them.

The Jumbo Marked that Harry Anderson performed was not his invention - John Cornelius is the inventor. I recall seeing Anderson perform Jumbo Marked on a different TV special, using the cards supplied by John Cornelius - The cards were ace through four and turned over in order, making the plot easy for spectators to follow. It was known as both "Marked" and "Marked for Life." Unfortunately, Jumbo Marked has been off the market for many years. The performance in the video you linked to appears to be edited down from a longer routine. The method is essentially identical to the original Cornelius routine. Anderson had the FAKE cards made just for his use - he never marketed or published it since it was not his to release.

I have John Cornelius's "Marked" with regular size cards, They have a large "X" on each one. I don't believe the routine was anything like what Harry did in that video. It has been many years since I performed "Marked", I really like the effect, so much I wore the cards out. I wonder where I put those cards and instructions, hum.

I have - and use - both the poker-sized and jumbo-sized versions. For the jumbo version, you have to switch from the usual Elmsley count that's viewed from above to the Elmsley count done with the cards facing forward, but it's still an Elmsley count so the poker-sized Cornelius original and the Anderson FAKE really are the same.