The Clone Wars - S5E10 - "Secret Weapons"

0:18 - Narrator:  "Secret transmission intercepted!"  This line contains the same words that are used in Vader's interrogation of Captain Antilles in A New Hope [5:44].  Vader asks, "Where are those transmissions you intercepted?  What have you done with those plans?" to which Antilles replies, "We intercepted no transmissions."

2:09 - Mace Windu (to the droids of D-Squad):  "You've worked with the Jedi before."  This is similar to what C-3PO says to Luke about R2-D2 in A New Hope:  "I've worked with him before" [19:22].

8:26 - Colonel Gascon (to WAC-47):  "You idiot, we're caught in a tractor beam."  Han Solo also says this in A New Hope:  "We're caught in a tractor beam" [1:04:53].

13:04 - Colonel Gascon:  "It's not my fault he [M5-BZ] fried his circuitry."  "It's not my fault" also appears three times in The Empire Strikes Back.  Han [1:07:00 and 1:07:02] and Lando [1:56:52] both say this when the Millennium Falcon's hyperdrive doesn't work.  Han also says, "It's not my fault" in Return of the Jedi as he's explaining to Jabba why he didn't pay him [20:26], and in A New Hope, C-3PO, speaking to Luke after R2 disappears, has a similar line:  "It wasn't my fault, sir" [26:21].