Complex sentence: He most recently co-starred in the FX comedy series "Legit", and is currently co-starring in the SyFy channel's Z Nation, which premiered on September 12th, 2014.
Split into simpler sentences: He most recently co-starred in the FX comedy series "Legit". Next, he co-starred in the SyFy channel's Z Nation, which premiered on September 12th, 2014.