These ratings here give a good representation of what was happening to the face of primetime TV in the early 1970s.
Long-time favorite GUNSMOKE was still placing strong at #18 for the week, but the majority of the Top 20 shows were a brood of new fare created in the wake of the "rural purge" and the overall shake-up at the TV networks at the start of the 1970s.
MARY TYLER MOORE and BOB NEWHART were both in the Top 10, while more politically aware comedies like ALL IN THE FAMILY and MAUDE were at #1 and #4, respectively. Still, American viewers enjoyed more wholesome offerings, like THE WALTONS, which placed #5 for the week.
More progressive, diverse sitcoms, like SANFORD AND SON, were also drawing big numbers, coming in at #3 here. Funnily enough, I always think of SANFORD AND SON as a Norman Lear show.
On the flip side, shows like HERE'S LUCY didn't even make the Top 30 here (it's #33 for the week), which I guess is fitting considering this was its final year. More youth-aimed sitcoms, such as THE BRADY BUNCH (at #36) and THE PARTRIDGE FAMILY (at #61), also shocked me.