Wow, that title definitely risks over-promising to "Bachelor" fans, but once the coronavirus pandemic put the brakes on production of the new season of "The Bachelorette," executive producers were forced to think outside the box. The result was this "greatest hits" retrospective, in which each weekly episode looks back over a full season from the "Bachelor" franchise's 18-year history. Chris Harrison returns in his familiar role as host, but filming his new scenes from the famous driveway outside the "Bachelor" mansion.