In the tag scene, Rob brings home a turtle on which Maria painted Rob's, Laura's and Richie's faces. It faded out with a close-up of the turtle and Rob saying "as long as this turtle lives, we'll be immortal". This was a last-minute edit as the original line was "we look just like the Kennedys". John F. Kennedy was still alive when this was filmed, but not yet aired. It was still being prepared for broadcast when the president was assassinated, so broadcast was delayed a few weeks, and the line about the turtle's longevity was inserted. (Those who own the DVDs can see a splice mark in between the long shot of the family, and that of Rob's hands holding the turtle up close. The sound of his voice also sounds a bit different, betraying the fact that Dick Van Dyke looped in the line at the last minute.)
Other than obvious laugh lines, all Spanish-to-English and English-to-Spanish translations in the episode are correct.