Complex sentence: Nine Network executives wanted to make her a regular on the show and began using her in publicity material, however, rival network Seven offered her a contract to co-host "Gladiators" before Nine could make her "Hey Hey" contract permanent.
Split into simpler sentences: Nine Network executives wanted to make her a regular on the show and began using her in publicity material. However, rival network Seven offered her a contract to co-host "Gladiators" before Nine could make her "Hey Hey" contract permanent.