When Hannibal throws the knife into the board while he's interrogating Elly Payne, the immediate close-up shows completely different writing on it.
When Murdock and the Professor are in the helicopter, Murdock who is supposed to be the pilot is in the left seat. Bell JetRangers are made to have the pilot in command in the right seat.
The Xanadu hotel is supposed to be Las Vegas, Nevada. However the state flag of California can be seen on the outside flagpoles.
The police car chasing the A-Team had California "E" license plates even though this is supposed to be in Nevada.
Murdock's Uzi has a silencer on it. However, shots he fires aren't silenced.
RTD (the Los Angeles transit bus operator at the time) "Bus Stop" signs are visible on street shots.