1. ISO support: I have heard
1. ISO support: I have heard people have issues with Dameon Tools. I never used it, but I can say that I have no issues using SlySoft’s Virtual Clone Drive to handle ISO mounting.
2. Video_TS: This is handled natively by WMC.
3. MKV: You only need something like LAV Splitter or Haali Splitter for handling MKV containers.
4. Additional codecs: So far, you haven’t demonstrated a need for them. What’s inside of your MKV containers? What makes you think that you need them?
5. Folder Layout: Are you looking to use the Native Movie Library, Video Library or both? We have a Native Movie Library guide that was just written.
6. TV setup is covered in the Ceton Network Tuner guide as you found.
If I were in your shoes, I would uninstall any codec packs and other software and start from scratch again. Then, work on one aspect at a time so that you understand what it is you need and what it is you are doing. By installing a codec pack, you are blindly shooting a shotgun into the dark and hoping you hit the right target and don’t hit something you didn’t intend (unless you know exactly what the codec pack does).