1978 Underoos Commercial Introducing Supergirl

This Underoos commercial introduced Supergirl to Underoos underwear. This was her first animated appearance. She had previously appeared in the Superfriends franchise in Limited Collector's Edition # C-41 (January 1976), but only as a statue, which makes this technically her first appearance in the franchise altogether. She would later appear in Super Friends # 37 (October 1980), but her only appearances in animation during the Super Friends era was in Underoos commercials, although she did late

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