DH_RetroTV 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software lies within Design & Photo Tools, more precisely Viewers & Editors. This software for Mac OS X was originally designed by Digital Heaven.
From the developer:
DH_RetroTV replicates various TV style transitions in Final Cut Pro. Includes switch on, channel change and switch off modes - yes the image shrinks down to a white dot!. The full version comes complete with five specially created and royalty-free sound effects.
You may want to check out more software for Mac, such as Cuadro or Resize Now, which might be similar to DH_RetroTV.