Make sure you bring plenty of blank videotapes on your tour. Always bring professional grade for the best quality. I use FUJI ST 120 Super VHS and Fuji M321 SP Betacam Tapes myself. Be prepared to have to leave them behind at the studio for them to dub and send later, although it's better to get them right then and there. The Super VHS tapes are 120 minutes long, and the Beta Cam are only 30.
Some studios use only one or the other format.
It's best to have both just in case. That quality is too poor to make dub. The media are relatively competitive sometimes, and often like exclusives, etc. So, if I go into one studio on Monday, I use a different tape to record a show at a different station in the same city the next day, just in case they do weird things because they see their competition was in line before them the day before. Just a precaution.