Anachronisms: When the Castillo brothers first approach New York City in the early 1950s, you can see the World Trade Center towers in the skyline. The towers weren't built until the early 1970s.
Factual errors: The "I Love Lucy" show was filmed in Hollywood several weeks in advance of the air date and never broadcast live as portrayed in the movie.
Factual errors: The "Valentine" opening credits seen in syndication were *not* the original opening credits. When the series originally aired on CBS, the credits featured animated stick figures of Lucy and Desi along with the sponsor's product - Phillip Morris cigarettes, for instance. The "Valentine" credits were added when CBS began rerunning the series in 1958.
Anachronisms: It is 1952 and the family is watching an episode of the TV series "Cheyenne" (1955) which did not premiere until 1955.