Oh how I miss being woken up on the first day of practice at 06.00hrs by the dulcid tones of Geoff Cannell & noisy motorbikes! I remember one year, just before broadcast, they played all the radio TT jingles one after the other, happy days!
Anyhoo, here's a link to the schedule on the wireless, this TT -
https://mmo.aiircdn.com/61/664cd98ec2542.pdf