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they were a couple of movie special effects guys who would bust various myths and urban legends. some of their investigations were more rigorous than others.

https://www.discovery.com/tv-shows/mythbusters/

bzzzzzzzt!
you said 'TV Show'.

that automagically negates any credibility.

mostly they just blow a lot of shit up, it was an entertaining show and when people thought they did a bad job busting a myth they would often try again, they made a lead balloon that floated.

perk
did you say
blowing stuff up?

all manner of things. And they test a lot of gun myths too, I wouldn't steer you to bad programming. one episode they devised ways to defeat all sorts of burglar alarms and fingerprint scanners.

yeah...but.
TV..that's a bridge too far.

I am sure if you watch it online the commercials are minimal. There is a girl mythbuster who is cute on the earlier episodes.