I wish they could give prior notice before just stopping availability of series, like when you log into a series say it will be removed in 30 days!...
That would definitely be a welcomed feature to Roku. Best you can get now for now is to keep your eye on the "Leaving Soon" section from within the Roku Channel. (just scroll down to the section "Leaving Soon").
I try to remember to look at this section before I start watching a series or if there is really I movie I planned on watching. However, I sometimes forget to do this. Generally speaking, you should consider content being made available for 30 days mimimum. (beginning of month to end of month). With each new month, no guarantee that the content will still be licensed/available for streaming.
Having some knowledge of how long the content will be available for would certainly allow a viewing schedule/priority for Roku users.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
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