Complex sentence: The show aired on April 7,1970 before the airing of that year's Oscars, and was a tribute to early vaudeville and featured animated reworkings of various famous comedians' acts.
Split into simpler sentences: The show aired on April 7,1970 before the airing of that year's Oscars. It was a tribute to early Vaudeville, and featured animated reworkings of various famous comedians' acts.