If you're hoping to get
in touch with Bill Nye,
The Big Bang Theory Season 7, Episode 7
Wild Bill Witchcock.
The Big Bang Theory Season 5, Episode 10
Actually, your name is on the electric BILL.
The Big Bang Theory Season 8, Episode 18
Bill Shatner here.
The Big Bang Theory Season 12, Episode 16
when you get my credit card BILL,
The Big Bang Theory Season 10, Episode 16