Found via lucky google search:
2015.01.14 https://laughseejapan.com/watch?v=18361
2015.05.20 https://laughseejapan.com/watch?v=18475
2015.06.10 https://laughseejapan.com/watch?v=19270
2015.07.29 https://laughseejapan.com/watch?v=19271
2015.08.12 https://laughseejapan.com/watch?v=19272
User has a lot of other Downtown related videos for anyone who’s interested!