The MediaMVP Media Center (mvpmc) is a media player written in C. It currently runs on the Hauppauge MediaMVP hardware. It can play video (including live TV), audio (including live radio), show pictures, and retrieve Yahoo! weather. mvpmc can access media from a MythTV, ReplayTV, Hauppauge, VLC, or SqueezeCenter (aka SlimServer) server. It can also access media via UPNP, HTTP, NFS, and CIFS. There is a VNC viewer built in. It understands MPEG1 and MPEG2 video, MP3, OGG, WAV, AC3, and FLAC audio and JPG, BMP, and PNG images.
GMediaRender is a UPnP media renderer for POSIX-compliant systems, such as GNU/Linux or UNIX. It implements the server component that provides UPnP controllers a means to render media content (audio, video, and images) from a UPnP media server. Content rendering is done using the GStreamer framework, providing rendering support for the media formats supported by this framework.
Klear is a KDE-based TV viewer for DVB. It includes internal tuners for DVB-S, -T, and -C. It is also able to record video streams in live- and scheduled-mode as MPEG TS and MPEG PS. It shows OSD information, takes snapshots, deinterlaces the video stream, and more. You can even watch the stream timeshifted and save the video afterwards. Klear also includes a feature-rich EPG and teletext-system and has multilanguage support.
KatchTV is an "Internet TV" application for KDE. It makes it easy to subscribe to "TV" channels from all over the Internet in the form of podcasts, so that you can browse channels, download shows, and watch them, all from one convenient interface. It is very similar to Democracy TV, but focuses on KDE integration, using KHTMLPart and embedded players such as kaffeine. It's much faster and lighter on resources if you run a KDE desktop without GTK apps. Installation is easy as long as your distribution has PyKDE and PyQt.