::: spoiler everything cut from season 1 as a sample:

"Pilot"

• Sheldon's line, "Well, today we tried masturbating for money." is cut.
• Sheldon's line, "You think with your penis." is cut.

"The Big Bran Hypothesis"

• Sheldon's line "Ah, gravity, thou art a heartless bitch" is cut.
• Penny's reaction when she finds the cleaned apartment is cut down. Her line, "Son of a bitch!" is shortened to simply "Son of a-", and her line, "You sick, geeky bastards!" is changed to "You sick, geeky-". The cuts are sudden and obvious.

"The Fuzzy Boots Corollary"

• Leonard's line, "The bastard teleported!" is cut.
• The lines about rebound sex are possibly cut (need to confirm).

"The Luminous Fish Effect"

• Howard's, "Hey, what's up, science bitches?" is cut.
• Mrs. Cooper's line, "It pissed the dog off to no end" is cut.

"The Hamburger Postulate"

• Lesley Winkle's "...unless you're a heroin addict..." was removed, though the following line regarding opiates is left in, making the line confusing.

"The Middle-Earth Paradigm"

No censorship was found in this episode.

"The Dumpling Paradox"

• Everything from Penny's line, "...and washing the sluttiest collection of underwear you have ever seen in my bathroom sink" to "He really needs to dial it down" is cut.
• Sheldon's line, "Who needs Halo when we can be regaled with the delightfully folksy tale of the whore of Omaha?" cuts off after "Who needs Halo...", then Leonard's line, "Oh, I don't think she's a whore", and Penny's, "No, yeah, she's definitely a whore." are both cut.
• All the lines where Sheldon and Leonard are discussing whether sex or Halo 3 is better outside of the Wolowitz house are removed.
• Mrs. Wolowitz's line, "Go back to Babylon, you whore" is changed to "Go back to Babylon", and Raj's line, "I thought she was the whore of Omaha?" along with Sheldon's "Shhh!" are removed.
• Howard's "Son of a bitch" is removed.

"The Grasshopper Experiment"

• Raj's line "Screw Princess Panchali" is removed.
• Penny's line, "Oh, maybe a couple virgin Cuba Libres that turned out to be kind of slutty", trails off after "Oh, maybe a couple virgin Cuba Libres".

"The Bat Jar Conjecture"

• Raj's line, "How come on Star Trek everybody’s private parts are the same. No alien lady ever told Captain Kirk, hey, get your thing out of my nose." is cut entirely. - Recent showings of the episode indicate that this part is no longer cut.
• Sheldon's "It's on, bitch!" is changed to, "It's on!"
• Leslie Winkle's line, "There’s no reason to feel uncomfortable just because we’ve seen each other’s faces and naked bodies contorted in the sweet agony of coitus", cuts off after "naked bodies". - Recent showings of the episode indicate that this part is no longer cut.

"The Porkchop Indeterminacy"

• Howard's line, "Your poor, deluded bastard", cuts off, leaving, "You poor, deluded-"
• This episode is titled "The Shiksa Indeterminacy" in the UK for some reason.

"The Tangerine Factor"

• Penny's line, "That stupid self-centered bastard wrote about our sex life on his blog." cuts out the word bastard, leaving "That stupid self-centered- wrote about our sex life on his blog", and her line, "Drop dead, you stupid self-centered bastard!" was changed to "Drop dead you stupid self-centered-".

Nah, it's far from harmless, it's pretty awful actually.

https://www.youtube.com/watch?v=X3-hOigoxHs