TV alerts: John Lennon programs on PBS Sunday and Monday

Beatles fans will want to tune into their PBS stations tonight for "Lennon Naked," a bio-doc starring Christoper (Doctor Who) Eccleston in the lead role. The film airs as part of PBS' "Masterpiece: Contemporary" series. I've read mixed reviews of the film, but enjoy Eccleston's acting and figure it's worth a look.  Of greater interest to me is PBS' "American Masters," which on Monday will present "LENNONYC," a look at John and Yoko's lives in New York during the 70s.