20/20 1978 | TV Show Watchlist

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A durable newsmagazine mixing investigative pieces with human-interest and celebrity features that's ABC's oldest prime-time series despite its notoriously rocky premiere. (Hosts Robert Hughes and Harold Hayes lasted only that one show.)

Premiered: June 6, 1978

Rating: None

User Rating:2.68 out of 5 (199 ratings)

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Season 36, Episode 18 Half Their Size

First Aired: January 4, 2013

Weight loss is the topic. Included: interviews with three people who managed to shed half their body weight; tips for keeping the pounds off; a look at a weight-loss marketing scam; and an interview with reality cast member Ruby Gettinger ("Ruby"). Also: profiles of celebrity sidekicks.