)from radio’s heyday, to the early days of network tv and beyond, to today’s cable stations, situation comedies have been a popular type of show. (2) situation comedies usually feature a continuing cast of characters, all or most of whom appear in each episode, which often results in regular viewers’ knowing the characters so well that they begin to feel like friends. (3) typical of the genre are conventional plots in which conflicts, often over insignificant, everyday things, are quickly introduced at the beginning of the show and resolved by the end of the show, a convention that can make situation comedies seem rather formulaic. (4) formulaic or not, many television viewers still enjoy situation comedies, though in recent years their popularity has sometimes been surpassed by that of reality shows.
which is the most effective way to vary the sentences in the passage?