While ArcSoft TotalMedia 3.5 holds nostalgic value, using it on Windows 10 64-bit in 2021 (and beyond) was often a struggle due to codecs and driver issues. If you want a modern experience that is truly free and actively maintained, consider these alternatives:
ArcSoft officially ended support for TotalMedia years ago. Arcsoft Totalmedia 3.5 Windows 10 64 Bit Free 2021
While not a full media center, it can play raw TV streams if you have the correct hardware address. While ArcSoft TotalMedia 3
Important information. This version of TotalMedia supports the ISDB-T standard TV card model which is mainly applicable in Brazil. Arcsoft TotalMedia 3.5 Software Arcsoft Totalmedia 3.5 Windows 10 64 Bit Free 2021
If you'd like to troubleshoot a specific TV tuner or find a modern equivalent: