Original sentence: This comparison was also made in the 1970s, but then in a derisive sense, with Television being tagged "the Grateful Dead of punk" due to their extended improvisatory jamming onstage
Edited sentence: This comparison was also made (derisively) in the 1970s, with Television being tagged "the Grateful Dead of punk" due to their extended improvisatory jamming onstage which was not fashionable at the time