Big RTS Thrill was there too. It was an action channel.
I dunno what RTL was.
When they launched. They had different content. I remember watching Bellator and Lucha Libre USA. The Oprah Winfrey Show on Big CBS Love. And music on Big CBS Spark. In 2012 they started airing same content at prime time across channels. You got America's Got Talent airing at same on Big CBS Prime, Big CBS Spark and Big CBS Love. Daytime atleast Big CBS Spark had music. Than they shutdown after having distribution problem. Had digitalization had happened couple of years earlier. They channels would succeed as AXN was pretty much #1 with the library of Big CBS Prime. IMO they should've run one channel with multiple blocks.