The Netflix version of the show is cropped to 16x9.
During the filming of the final season, NBC refused to let the producers know whether or not they had been renewed until after the filming of the final episode, in order to try and draw in viewers. To compensate, the creators filmed two different endings. In the first ending, which was shown on network television, the Solomons went back to their homeworld and erased Mary's memory. In late 2001, the second ending was shown in syndication for what was billed as the "first and only time." This "second ending" is actually an extension of the original: Mary wakes up and goes to the Solomon's car and finds that Dick has given her the keys (you can see Dick tucking something in her hand in the original broadcast ending). When she puts the key into the ignition, a naked Dick appears next to her in the car and screams "ALIEN ABDUCTION! ALIEN ABDUCTION!" before grabbing Mary and disappearing with her.
In an episode entitled "Assault with a Deadly Dick," a line of dialogue was cut after the first airing. Dick is waiting at the police station with Mary to point out the man who mugged him. Officer Don comes in and says "Time to finger your perp." Dick looks awkwardly at Mary and replies "I keep trying, but she won't let me." When the episode was rebroadcast a few months later, Dick's line was omitted and the laugh track was streched. This line is always cut in syndication airings, but when shown outside the US and on the DVD, the line is intact.