As of August 2019, streamers are still spending most of their media time with traditional television. Watching traditional TV plays a big part in the lives of both streamers and non-streamers. Streamers spend 2 hours and 32 minutes watching traditional TV, while non-streamers spend a whopping 4 hours and 26 minutes. This is a big window of time to reach consumers with your advertisements.
Source: Nielsen Local Watch Report August 2019; Traditional TV=Broadcast & Cable