The Silver Surfer & the Return of Galactus - S1-E13
Continuity mistake: When Reed changes the channel to the "March of Science" program, the electrical surge strikes the TV antenna on the roof, and you can see a grotesque next to it that wasn't there in previous shots. (00:01:53 - 00:03:26)
Answer: As the other answer indicated, it is a common filming technique used to achieve various visual effects. Handheld cameras can create a deliberate sense of movement that follows a movie's action. A cameraperson can physically move in much closer to an actor, creating a more intimate connection between the character and the audience. It can also reflect a character's movement from their vantage point, and can be used to create a greater sense of realism with an edgier, less-rehearsed, or a documentary-style feel.
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