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How Many Episodes Should You Watch Before Quitting a TV Show? A Statistical Analysis
(www.statsignificant.com)
A place to share and discuss data visualizations. #dataviz
Or just wait until the 8th movie. Treat it like I treat most articles now that are like "This was the Beatle's biggest regret!". The first 4-5 paragraphs will be total fluff and now I immediately scroll to about the halfway point where they actually address the headline.
Tbf, there is often a proportional reward (multiple seasons of good TV being quite a bit longer than the movies that get good).
Also, with how pacing, budgets and casts work in the industry, a movie often ends up having more in terms of emotional investment and new information than an equivalent length of TV. So the effort to watch a movie is not the same as watching an hour and a half of TV (on average).