There ARE Gabriel Byrne films and TV on the web, ready and waiting for your eager viewing.
These are mostly early movies like Dark Obsession and A Soldier’s Tale, generally hard to find anywhere, and some episodes of Bracken, plus a few interviews, Gabriel’s episode on Inside the Actors Studio, and some clips from his Saturday Night Live episode, which he hosted.
Thanks to Aragarna for compiling this list. You have saved many from anxiety and fear, Ara. We indeed thank you!