Hi there! I understand you're having trouble playing WCVB NewsCenter 5 videos specifically on your Windows 6.1 system, while videos from other news stations work fine. To help you better, could you tell me a bit more about how you're trying to watch these videos? For example, are you using a web browser, and if so, which one? Or are you using the WCVB NewsCenter 5 app? Also, do you see any error messages or does the video just not load?

Meanwhile, here are some common issues and fixes we can start with:

1. Browser Compatibility: If you're watching on a web browser, sometimes certain browsers block video components or plugins. For example, Firefox disabled Adobe Flash support years ago, which used to affect video playback on WCVB's site. If you're using Firefox, try switching to Chrome or Edge to see if that helps.

2. Clear Browser Cache and Cookies: Sometimes old data can interfere with video playback. Try clearing your browser cache and cookies, then reload the WCVB page.

3. Update Your Browser: Ensure your browser is up to date, as older versions may lack necessary video support.

4. Check for Missing Plugins or Media Support: Some videos may require specific media codecs or plugins. Since you have Windows 6.1 (which is Windows 7), ensure your system has the latest media updates.

5. Try Using Incognito/Private Mode: This disables extensions which might interfere with videos.

If you're using the WCVB NewsCenter 5 app, please let me know which version and device you're on, so I can guide you on app-specific fixes.

Could you try these first and share what happens? If that doesn't fix the issue, we'll dig deeper!