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zonavar68 No, they don't - and the companies exploit the fact by making the terms basically unreadable. Literally "small print", pages of pseudo-legal waffle, but all saying to the customer, "You as Customer, agree that You pay The Company to serve the Company as it decides".
Quite apart from catching out alleged adulterers though, I ask the legality and morality of filming strangers without their specific permission or control, for others' entertainment.
Who is making the video?
Who owns its contents?
What is done with it after the show?
What protection does it have from wrongful use?
What warnings are given to the audience prior to even buying the tickets, that the audience as well as performers will be videoed for reasons other than genuine TV broadcast or performance publicity?
People worry about security cameras in shops but those are there for a genuine reason. What of worrying about so-called "kiss-cameras" used for no genuine reason or justification?