When Rome Ruled: The empire's storied military legions (6 and 9 p.m. National Geographic) and the rise of Christianity (7 and 10 p.m.) are explored in new installments.
Hell's Kitchen: The culinary-themed reality competition hosted by chef Gordon Ramsay returns for a new season (8 p.m. Fox).
Man vs. Wild: Host Bear Grylls visits New Zealand on a new episode of the outdoor-adventure series (9 p.m. Discovery).
Abraham and Mary Lincoln: A House Divided: President Abraham Lincoln's issuing of the Emancipation Proclamation is recalled in this new episode (10 p.m. KOCE).
Martha Stewart Presents: Women With Vision: The home-makeover maven profiles three women who are outstanding in their respective fields in this new special (8 p.m. Hallmark).