It was the first of its genre on American television and in the world, and is the fifth-longest-running American television series. Originally a two-hour program on weekdays, it expanded to Sundays (a one-hour program) in 1987 and Saturdays (running for two hours) in 1992. The weekday broadcast expanded to three hours in 2000, and to four hours in 2007.Todays dominance was virtually unchallenged b
It was the first of its genre on American television and in the world, and is the fifth-longest-running American television series. Originally a two-hour program on weekdays, it expanded to Sundays (a one-hour program) in 1987 and Saturdays (running for two hours) in 1992. The weekday broadcast expanded to three hours in 2000, and to four hours in 2007.Todays dominance was virtually unchallenged b
