Not connected to lifetime movies on my Roku

Not understanding why mylifetime.com/authorize on my Roku does not show Cox as a TV provider which I am a customer with. I cannot watch lifetime on my roku and it's rather frustrating! I understand I have the on demand option but quite frankly Cox's on demand is slow loading and just not user friendly..I hate the on demand layout and lack of shows. I like the streamline effect from my roku, which has the earphone jack, smartphone remote with voice searching etc. I hate being forced to watch what I pay for monthly on devices of the company's choice when It can be viewed numerous ways which are better, easier ways for customers like myself. I pay for it, I can see the menu but if I want to watch the movie I have to rent it for $2  so I then can watch it on my roku!! Really??? Grrrrrr I pay almost $200 a month for these services already!!