Original From First 7 Episodes[]
This main title sequence aired from Episode 1x02: Threads through Episode: 1x07: Free Fall
300px|right|1st Main Title
Old Title Sequence[]
This main title sequence aired from Episode 1x08: Hard Sell through Episode 3x01: On Guard.
300px|right|2nd Main Title
New Museum Setting[]
This main title sequence started airing with Episode 3x02: Where There's a Will through Episode 3x06: Scott Free.
300px|right|3rd Main Title
Return of Old Title Sequence[]
On July 13, 2011, after the week-long voting on it's website closed, USA Network announced that due to popular fan demand the "old title sequence" would return for Episode 3x07: Taking Account through the remainder of Season 3. The sequence was updated to include all current cast members.