Unfortunately YTTV doesn’t have the Bally networks. I haven’t been able to see any of the Lightning/Magic/Rays in several years. They offer a streaming service for $20/month, which I find to be outrageous, and they also split them with the South Florida teams (Heat/Panthers/Marlins) to effectively try to get you to buy two packages. I think it’s Magic/Panthers/Marlins and Lightning/Heat/Rays.
The Bally networks have been struggling on paying their bills so more and more teams across the NHL, MLB, and NBA have been taking their rights to local OTA affiliates. Hopefully things keep trending that direction.