Of all the hours devoted to original and longtime TCM host Robert Osborne this weekend, two programs should be considered all but mandatory. One is the Private Screenings with Alec Baldwin, in which Osborne himself is the subject – it’s repeated in prime time, and again tomorrow, as is this one, a 2015 special honoring Osborne’s then 20 years at TCM. Both specials are informative, inspirational (Osborne’s life is, indeed, a Hollywood dream come true), and wonderfully heartwarming.