The RBC antibody identification test is used to name the specific antibody or antibodies that are present to determine if they are likely to be clinically significant, i.e., if they are likely to cause a transfusion reaction.
Roku features several cable channels like FOX, A&E, History Channel (and dozens more) that offer a combination of free content, plus a full line-up of channel content you can access with your cable subscription credentials.
If you are looking for national news many big name cable networks offer videos and live feeds of the breaking news. Here is a list to their Roku Apps. NoWhere TV offers @4/7 CNN International, BBC, Sky News, and Al Jazeera English. You can find out more about the app on their site.