Start with "White Christmas," mix in a mid-'60s Judy Garland television Christmas special, add a dash of "Silkwood," and you have "The Paisley Sisters' Christmas Special " It's 1964, and America's Songbirds, The Paisley Sisters, are airing a brand-new color-television holiday extravaganza with hopes of landing themselves back in the Top 40. The result is a hilarious send-up of early television holiday specials full of backstage drama, questionable corporate sponsors, secret telephone calls, assumed identities, and general mayhem. This hip alternative to standard holiday fare has been charming...