Available networks

I am thinking about subscribing to Spectrum TV streaming. The website states it comes with 85+ channels, how can I find out which channels would come with my subscription? Do I need to contact Spectrum CS by phone? Does anyone know if the channels they offer are set in stone or can I interchange for other channels. Looking at some of the channels offer probably 80% of the channels I have no interest in. I would gladly trade most of the channels offered for channels I like such as Fox Sports, ESPN, NBC, or CBC. Any suggestions recommendations would be appreciated.