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.
Roku has quite a few free channels as well as channels you need to pay for such as Netflix, Hulu Plus, Amazon Prime, and more. Roku syncs all these channels and makes it easy to browse content from each channel.