Mopsy debuted in 1939, when TV was shown at the World's Fair. It still seems like a rather tenuous connection.
Actually, they were just using popular buzzwords to sell a product that might seem less than hep to modern youth. These books were early 50s reprints of late-40s strips.
The artist was Gladys Parker, who sad she modeled Mopsy after herself. Wonder if she used this pose around the office.