Does anyone know where you can buy 1080p movies and tv shows online with no drm? I hate having to use specifies software or a specific OS just to play video file. I prefer to place things on my own home server and use them when and how I want.

Good luck with that! Besides needing a pretty fat pipe (fast internet connection), none of the major studios are willing to release their content without "protections". My suggestion is to purchase BluRay discs, and then use some of the available open source tools to extract the feature or other parts to (most commonly) Mastroika video (mkv) format with full 1080p resolution. That can be streamed to most any device, or converted to an mp4 with full resolution. Note that the resulting files are still big - often over 4-5GB in size.