“Dr. Seuss’s How the Grinch Stole Christmas!” returns for its 26th year at the Old Globe Theatre, enchanting audiences with beloved tunes like “You’re a Mean One, Mr. Grinch.” This one-hour and 25-minute musical adaptation of the Seuss classic transforms the venue into a festive Who-ville, complete with snow and Who-hash. Note: The show is suitable for ages three and up, and all attendees must have a ticket. There is no intermission.