Not on 64, just 81 then 40. Of course 64 & 81 run together for a few miles, as do 81 & 40. We weren't on constantly, but certainly most of the time.
Nashville area was 3G all the time, and fast.
I must admit, that at our office we get a strong signal, then low or nothing. It seems it's not the tower, it's the capacity of the tower. I don't think it can support as many users as there are in that industrial area. The AT&T signal availability there is better than Verizon and Sprint, but not good enough. The remaining Nextel users hate that part of town.
Regarding the video- why would they use this guy? Do they think the only folks concerned are fellow nerds? Maybe they're using other methods to get to the common man/customer.