Here's 2 links I found which explains it more.
How to activate the online LIVEversion purchased at retail
https://ttlc.intuit.com/community/register-or-activate-services/help/how-do-i-activate-turbotax-live...
What is Turbo Tax LIVE purchased at retail
https://ttlc.intuit.com/community/authorize-funds/help/what-is-turbotax-live-purchased-through-retai...
