Illinois State Legislature
The Illinois General Assembly is the state legislature of the U.S. state of Illinois and comprises the Illinois House of Representatives and the Illinois Senate. The General Assembly was created by the first state constitution adopted in 1818. The State Senate has 59 members while the House has 118. A Senate district is formed by combining two adjacent House districts. Wikipedia*
On the C-SPAN Networks:
Illinois State Legislature has hosted 1 event in the C-SPAN Video Library; the first program was a 1984 Debate.