MLB enforces no blackouts and Aereo/BarryDriller won't get you access to MASN where almost all Orioles games air (outside of those on FOX/ESPN or MASN simulcasts aired some weekends on WJZ).
You're missing the point.. any media which broadcasts "freely" on the airwaves or cable-tv can be re-streamed online or "copied" for later playback.. where the content originates is beside the point.