Raw started in 1993, but the last few years of Prime Time they were noticeably cutting back on the arena matches and focusing more on extended skits and showing matches from the other syndicated shows.
Speaking of, with WWE improving the quality of their syndicated shows so quickly, I remember how jarring that was as a kid. All weekend I would watch this slick ass state of the art (for the time) production and then on Monday night I'd watch Bobby and Gorilla banter between matches from MSG that looked like they could have been from either 1986 or 1976 based on the quality.