What's My Line? TV series poster

What's My Line?

1950 · 1 Season · Canceled

TV-G Family, Comedy

Four panelists must determine guests' occupations - and, in the case of famous guests, while blindfolded, their identity - by asking only "yes" or "no" questions.

Ratings

Based on audience scores
7.0 The Movie Database
8.5 IMDb
N/A Rotten Tomatoes
N/A Metacritic

Where to stream What's My Line?

Streaming now in the United States on Amazon Prime Video.

Amazon Prime Video

Top cast and crew

John Charles Daly Self - Moderator
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Frequently asked questions about What's My Line?

Where can I watch What's My Line? in the United States?

What's My Line? is available to stream on Amazon Prime Video in the United States. Streaming availability is provided by JustWatch and can change over time.

Is What's My Line? on Amazon Prime Video?

Yes. What's My Line? is streaming on Amazon Prime Video in the United States.

Can I watch What's My Line? for free?

Not free in the United States right now. What's My Line? needs a subscription to Amazon Prime Video.

What are the ratings for What's My Line??

What's My Line? scores 7.0 on The Movie Database and 8.5 on IMDb.

Who stars in What's My Line??

What's My Line? stars John Charles Daly.

How many seasons of What's My Line? are there?

What's My Line? has 1 season and 876 episodes, and is canceled.

How long does it take to watch all of What's My Line??

All 876 episodes of What's My Line? add up to about 438 hours at roughly 30 minutes each. At two hours a night that is about 219 evenings; at four hours a day it takes about 110 days.

What network is What's My Line? on?

What's My Line? airs on CBS, and is produced by Mark Goodson-Bill Todman Productions.

Ratings and streaming availability are aggregated from third-party sources; metadata from The Movie Database (TMDB), streaming data from JustWatch. This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability checked September 2026.

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