Here you find videos by Tomoji Miyamoto Sensei (ex-member of Nihon Karate-do Shotokai) doing kata in presence of Master Shigeru Egami, sometime in the early 70’s. Included among these videos are the kata: Taikyoku Shodan, Heian Shodan, Heian Nidan, Heian Sandan, Heian Yondan y Heian Godan and other more advanced ones. These are excellent examples of Shotokai practice. Some other videos are linked, that though not at the same level (at all), show some interesting variants you might encounter when visiting other karate groups around the world.
Video Kata Taikyoku Shodan
Video Kata Heian Shodan
Video Heian Nidan
Video Heian Sandan
Video Heian Yondan
Video Kata Heian Godan
Kata Bassai Dai
Kata Kanku Dai
Kata Tekki Shodan
Kata Tekki Nidan
Kata Tekki Sandan
Kata Hangetsu
Kata Jutte
Kata Jion
Kata Empi
Some videos from Japan: Nihon Karate-do Shotokai
Two videos from American Karatedo Shotokai, the practice is quite different, but they are still interesting:
Heian Shodan, Tekki Shodan