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Sitcom Siblings: Then & Now

28 of 30

THEN: 'Leave It to Beaver'

Aw, gee, TV siblings don't get much closer than Wally Cleaver (Tony Dow) and his little brother Theodore (Jerry Mathers), better known as The Beav. "Leave It to Beaver" ran from 1957-1963. —XFINITY Entertainment Staff (Photo by Hulton Archive/Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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