HQ Trivia is a mobile app from the makers of Vine which broadcasts live as a trivia game. Players can participate by answering a series of questions within a short time limit, subject to elimination upon incorrect answers. Winners are awarded cash prizes when all the questions are answered correctly.
- January 29, 2018 — Bert from Sesame Street joined host Scott Rogowsky for the scheduled 9pm show broadcast from a studio in New York City. Bert plugged his Twitter handle, @BertSesame (for which Rogowsky snapped a live selfie), corrected the host on the plural form of Snuffleupagi, and helped field twelve questions on topics ranging from unibrows, the origins of Radar's name, the New York Public Library, the music of Jaws, and co-hosts of The View. The game ended with over 1,500 winners sharing $2,500 in prize money.
- June 26, 2018 — Elmo appeared alongisde Scott Rogowsky for the scheduled 9pm show.
- October 24, 2018 - Cookie Monster appeared on the 9pm show with Matt Richards.