Wednesday Downtown 2018 Episode 13 Episode 13 ( Air Date 2018-04-25 ) Genre Comedy category. Overview "The theory that as long as "a" and "ta" are correct, anything goes in between "thank you" ◆Sumo wrestling totaling 170kg, Part 2 ◆The theory that every minor sport has been turned into a manga at least once ◆The theory that there are Naha citizens who cannot write "Naha" in kanji".