'Make Room For Granddaddy' Previewed By Series Producer Richard Crenna By RICHARD CRENNA Series Producer I could be the most envied producer in television. After all, how many producers get to launch a new series with 11 successful years behind it and a top star like Danny Thomas? But rather than take anything for granted, we've shaken up the old successful formula. Make Room for Granddaddy is a series that's" contemporary in every aspect while invoking a sense of nostalgia among viewers of Danny's previous Daddy series. Such followers will delight 1970 in "revisiting" the Danny Williams family. They'll find Danny and Kathy (Marjorie Lord) virtually untouched physically by the passing of time and very au courant with the contemporary scene.

Their daughter Linda (Angela Cartwright) has emerged from the chrysalis of childhood to become a lovely 17-year-old girl with a mind of her own and with the hang-ups of teen-agers' everywhere. Son Rusty (Rusty Hamer) is grown up and married, now with a family and personal problems of his own. Daughter Terry (Sherry Jackson) also is married and lives in Japan with her Army-based husband. Their 6-yearrOld son Michael (Michael Hughes) is staying with his grandparents, Kathy and Danny, a situation that is developed in the first episode of the ABC Television Network series. And, of course, Uncle Tonoose (Hans Conried) is back again, still garrulous, grumpy, opi nionated and lovable.

' Also returning is Charley (Sid ' Melton), who owns the Copa,: where Danny entertains, and is virtually one of the family. There'll be new faces, too. Rosey Grier the great professional football star-turned-entertainer will be seen as Rosey Robbins, Danny's accompanist. Stanley Myron Handelman, one of the brightest of the new school of comedians, is another welcome addition to Granddaddy. He plays Henry, the elevator operator in the Williamses' apartment building, with a catalogue of complexes that could keep a school of psychiatrists busy around the clock.

Make Room for Granddaddy, which premieres Wednesday, Sept. 23, is an all-new series. We'll be doing stories on subjects Danny could not have done as recently as five or six years ago. Danny will be involved in familiar situations as well as new ones evolving from the social changes taking place in our world. , In the long run, laughter may be the best medicine to help cure the socio-economic ills of today.

And we plan to administer our share of it, as best we can, with Make Room for Granddaddy. . TV Notes Raymond Burr, star of NBC-TV's Ironside, revealed that he visited Madame Chiang Kai Shek during his recent round-the-world trip. He said he was her first visitor since she was in a serious auto accident some months ago. Burr said the whiplash injury she received partially paralyzed one hand, necessitating her learning to paint in a completely new style, which he termed striking and beautiful..