Totally different animals. The TS is a single action only, wider frame gun designed to be optimal for Limited. The Shadow is a DA/SA gun designed to be optimal for Production. The TS has a much greater capacity, being designed around the .40, while the Shadow shares magazines with the standard 75B, which was designed around the 9mm.
The TS Orange is the pinnacle of CZ's lineup for Limited Division, while the 75 Accu-Shadow is the pinnacle of the lineup for Production, and the Czechmate is the pinnacle of the lineup for Open.