Continuity: In the scene where Howard supposedly has radio sex with that blonde woman, it flashes to other locations where people are listening, including one with police officers standing by what are clearly early to middle 1990s Ford Crown Victorias. Howard did the stint in the mid 1980s.

Continuity: Howard is happy about trying to get Allison pregnant, he places the microphone on the chair mat to do a tap dance. When they cut to the close-up the microphone is on the carpet.

Continuity: When Howard hits Kenny with the phone Kenny's nose is bleeding. It cuts to Howard and then back to Kenny and the blood has disappeared.

Factual error: In a scene that takes place in 1979, a woman takes off her dress to reveal that she's wearing a thong. But thongs weren't worn as underwear by American women until the 1990's.

Continuity: When Howard's dad is talking to Howard about his future, the dad is holding a pipe in his right hand with the pipe stem pointing towards Howard. When it switches to the close up of the dad, the pipe stem is now pointing towards him.

Continuity: When Howard is in the car with his dad, driving to his dad's work, they are driving across the bridge in the left lane. When they switch to the wide shot the car is in the right lane.

Continuity: Howard is interviewing with Moti to become a DJ, Howard is sitting at Moti's desk in front of a Rolodex and a pen cup. When the shot cuts, Howard has moved to the right and is now sitting in front of the rainbow mug and picture.

Continuity: When Howard is young and watching the guy break the records, there is a blue coffee cup on the desk. The cup moves from under the microphone to its right. Then it disappears in one shot, but in the next shot he picks it up and throws it. Then after Howard's dad gives the speech to get back on the air, the cup is back under the microphone.

Continuity: During the nude scene with Jenna Jameson, Howard is standing out of touching distance of Jenna. He then states "holy cow are you naked" and the camera angle changes to the opposite side and he is now about a foot away from her.

Factual error: In the scene where Howard is saying goodbye to Fred in Hartford, a Discover Card logo appears on the storefront behind Howard. This scene is meant to take place in April of 1980, but Discover Card wasn't introduced until 1985.

Revealing: When Howard is reading the book about how to "score with babes" his lines are on a piece of paper on the page. You can see this by the different color papers.

Continuity: When Howard and his friends get caught in the rain and go to the sorority girls house, the girl answers a solid wood door, but when it gets closed it has curtains on it.

Continuity: Howard and his dad are walking towards his fathers office, there is a black news stand on the sidewalk. When they cut to the shot of his dad holding Howard's hand the news stand is gone.

Revealing: When Howard and Allison stop to get gas you can see the rear view mirror has been moved out of the way.

Factual error: In the early 80s, Howard attends the premiere of "Die Watching," a film that was not made until the early 90s.