Identify two music television programs or networks that were important to the development of rock and roll. describe the impact of each program or network on rock and roll.

The Lloyd Thaxton Show and American Bandstand were TV shows.

Explanation:

The Lloyd Thaxton Show, also known as The Lloyd Thaxton Hop was a TV show hosted by the guy indicated in the title. It alternated both comedy and music and many rock artists were invited to play there, such as The Birds, Sonny & Cher, The Kinks, among many others.

This show was very similar to American Bandstand, which was on air from the early 50s up to the 80s. Richard "Di.k" Clark was both producer and host of the TV show. The show was mentioned by Chuck Berry in one of his tracks, showing how important it was for the industry. Later, the show also hosted important artists as the Jackson 5.

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