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When television became the dominant form of entertainment in the 1950s, networks needed to fill several hours of programming with fresh and original shows that would crush the competition.

Luckily, the networks didn't have to look that far to find inspiration. Some of the biggest radio shows of the day were eager to make the leap from the airwaves to the small screen.

Many of them succeeded, and many grew to become iconic television programs. But let's not forget they were first successful radio shows. Here's a look at some shows you might not realize had radio roots.