I just found out about this.
The cable channel TVLand is running an Alfred Hitchcock marathon today. According to the schedule at http://www.nick-at-nite.com , the “Alfred Hitchcock Hour” presentation of “Memo from Purgatory” can be seen at 11 PM Central time, today, Saturday 12/30 (check your local listings to verify). See a young, muscular James Caan as Harlan and a fresh-faced Walter Koenig as the ruthless gang leader!
In one previous marathon, TVLand apparently timed their episodes a little short, so the timing errors accumulated and later episodes started a few minutes early. If you want to tape this, it might be a good idea to allow for a start time of plus or minus 5 or 10 minutes. Alternatively, check episodes earlier in the evening to see if they are on time or not.