Complex sentence: For a year in 1980, it did operate a news department and air a half-hour primetime news program known as "The 10 O’Clock Report"; this was established during a time of heavy competition from other newscasts.
Split into simpler sentences: For a year in 1980, it did operate a news department and air a half-hour prime-time show known as "The 10 O’Clock Report". This was established during a time of heavy competition from other newscasts.