CBS has re-launched its online platform with more content available to stream, making the platform a veritable catch-up TV service. CBS launched a new app, called simply CBS, earlier for iOS, and now it’s available on Windows 8 and Android devices. It replaces the earlier CBS Connect app. It offers a couple of full episodes of its daytime and primetime TV shows such as ‘The Big Bang Theory,’ and ‘How I Met Your Mother.’ It also offers episode highlights from past episodes and a short preview clip from the upcoming episode, and bonus content, such as podcasts and interviews with actors. Disney’s ABC and NBC Universal have already launched similar on-demand platforms. ABC’s Watch ABC app is only available in…