Cygnus! Hyogen no senshi - S1-E3
Other mistake: During the presentation of the Golden Cloth, you can count 9 boxes with Bronze armors at the base of the column, but there should be just 8 of them. That's because of the 10 scheduled fighters, Ikki is missing, but Hyoga as well; he appears in this episode but the organization does not know he made it back to the arena until the very last moment, and they even announce his absence to the crowd a bit later in the episode. (00:12:00)