Richie on a Game Show is a Richie Rich Gems segment that originally aired in early 1981.
Richie is about to be a "mystery guest" on a panel game show called "Name that Person", played similar to What's My Line?. Before he takes the stage, he is told by a backstage staffer to wear a mask and disguise his voice. Once he took the stage, the three panelists, all female, asked him questions one by one. Then the third panelist dug out her opera glasses and discovered dollar signs in his eyes, and identified the mystery guest as Richie Rich. Richie then removed his mask, and was wondering how she knew.