TSO in Knoxville Tn

Lee Ann and I went to Knoxville to see the Trans Siberian Orchestra for our anniversary. It was a good show. Too bad Thompson-Boling Area messed things up by not putting up signs for the Will Call. We walked up to the entrance (3 Flights?) in 24 degF temps only to be told that we had to go back down for the Will Call. I noticed lots of others walking back down. I should have caught a clue.