TVR 25 uses old 32-bit drivers that are not digitally signed. To install them:
Product background and development Honestech, a company producing multimedia and video-capture software and hardware, developed several versions of TVR (TV Recorder) to pair with USB TV tuners and capture sticks. Versions like TVR 2.x/3.x evolved into TVR 6 and then later into variants such as TVR 25, often bundled with OEM capture devices. These applications focused on simplicity: one-click capture, timetabling TV recordings, and straightforward editing tools to trim and combine clips, plus VCD/DVD burning features for physical archival. honestech tvr 25 download link
Hardware and system requirements (typical for era) TVR 25 uses old 32-bit drivers that are not digitally signed
Some users find installer files on sites like Apponic or Software Informer, though these should be scanned for safety before use. timetabling TV recordings
If you're having trouble getting the old software to work, many users have switched to modern alternatives like OBS Studio