This is one of the great things TV can do for us: import, into our living rooms, something that can enrich as well as entertain us, and treat us to something we might otherwise have missed. This is a Great Performances presentation of Christopher Plummer’s Broadway performance of Barrymore, for which he won a Tony. He plays John Barrymore in that famous actor’s twilight year of 1942, preparing to humble himself for a backer’s audition in hopes of raising funding for a revival of his legendary Richard III production from 22 years earlier. Barrymore is written by William Luce, the playwright who also wrote The Belle of Amherst. Check local listings.