At a time when few sitcoms are being introduced by the broadcast networks, CBS’ “The Big Bang Theory” has exploded into a hit show, the Wall Street Journal reports. Of course everything is relative: on its best night “Big Bang” drew 10 million viewers, but co-star Johnny Galecki recalls that when he appeared on “Roseanne” in the 1990s, “we were bummed if we were under 28 million.”
—Jon Lafayette