Saha ra-Ta hoe Entertainment Line UpHIGH' SIERRA THEATER: Current: “The Rowan and Martin Show,” starring Dan Rowan and Dick Martin: a:so starring the “ Sock-i t-to-Me crowd,” Maury Deii conducts ths A1 Tronti Orchestra (through May 20). Openings: Phyllis Diller with The Osmond Brothers and Warde Donovan; A! Tronti’s Orchestra (May 21-June 10), 'JUNIPER LOUNGE: Current: Diana George (through May 22); The Five Chords (through May 15); The Three Cheers (through May 14); The Modcrnaires (through May 3) The Cut-Ups (through May 8). Openings: The Apollos (May9-June 5): Jim Ed Brown (May10-15); The Treniers (May 15-June 15); Martin Denny (May 16-June 15); The Original Caste (May 16-June 15); The; Carey-Garfin Four (May' 23-June 19).