The network TV version of the movie added scenes not shown on the DVD including an extended version of the "Present, pass-it-on" sequence.
In the original theatrical release, the opening credits title is "The Grinch", and the Dr. Seuss credit is phrased as "Based on the Book 'How the Grinch Stole Christmas' by Dr. Seuss". In the consumer-friendly home media releases, the opening credits title is "Dr. Seuss' How the Grinch Stole Christmas", and the Dr. Seuss credit is phrased as "Based on the Book by Dr. Seuss".
Included on the DVD release of the film are some deleted and extended scenes. One is an extended version of the Grinch wreaking havoc in Whoville by using a marble, which causes a domino effect. Another is a scene where Lou Lou Who is called into a parent-teacher conference because Cindy Lou Who wanted to do a report on the Grinch. A final scene reveals that the tree the Grinch cut out from the floor is the Whoville police officer. The officer comes downstairs sleepwalking and the Grinch locks him in the linen closet.