nAfter being on hiatus during most of January, February, March, and April of 1977, the series re-surfaced as part of NBC’s regular Friday night hour-long line-up (10 – 11 PM). While the majority of the episodes aired during NBC’s Wednesday night line-up, a total of one-hundred and forty-three (143) 60-minute episodes were produced over the next six seasons (1977 – 1983).nnnnn