If you could go back in time and meet Jimmy Page when he was a session musician, what advice, it any, would you give him, knowing what you know?
I would probably say "For God's sake Jimmy, film as many live shows as you possibly can because they will be worth their weight in gold for your fans. Do TV, I know you are against it but just do it! Go on The Old Grey Whistle Test and other Music shows and do some TV specials. In the future when they compile music programmes about the greats or specials like Sounds of the 60's , they will include clips from The Beatles, The Stones, The Who, Clapton and so on, but none from your band, you will be left out because there will be no clips to show (or very few)"
Oh, and try having some singing lessons, may come in handy.