"A CharlieBrown Thanksgiving" is not the most popular entry in the beloved animated franchise (both "A CharlieBrownChristmas" and It's the "Great Pumpkin, CharlieBrown" deliver bigger numbers).
Robbins starred as CharlieBrown in the 1965 debut "A CharlieBrownChristmas" and held the role in five other television specials, including "It's the Great Pumpkin, CharlieBrown" in 1966.