[Illustration by ALEX FINE] ABC NEWS: In the strongest indication yet that Friday indeed will mark Conan O’Brien’s final “Tonight Show,” a list of the booked guests for the rest of this week released Tuesday featured Will Ferrell set to appear Friday. Ferrell, of course, was the first guest on “The Tonight Show With Conan O’Brien” when the show launched June 1. Other big names scheduled for O’Brien’s final week on “Tonight”: Tuesday, January 19: Quentin Tarantino, Paul Bettany and musical guest Spoon; Wednesday, January 20: Adam Sandler, Joel McHale and musical guest Joss Stone; Thursday, January 21: Robin Williams […]