She appeared in a wide variety of television work , which included a starring role in the 1960s television series `` Petticoat Junction '' and `` Green Acres '' as Shady Rest Hotel owner Kate Bradley , supporting roles as Blanche Morton in `` The George Burns and Gracie Allen Show '' and as the original voice of Betty Rubble during the first four seasons of `` The Flintstones '' , and in `` The Beverly Hillbillies '' as Pearl Bodine .
She appeared in many television shows , which included a starring role in the 1960s television series `` Petticoat Junction '' and `` Green Acres '' as Shady Rest Hotel owner Kate Bradley . She also appeared in supporting roles as Blanche Morton in `` The George Burns and Gracie Allen Show '' and as the original voice of Betty Rubble during the first four seasons of `` The Flintstones '' , and in `` The Beverly Hillbillies '' as Pearl Bodine .