Cometti, who spent 26 years with Seven, has died at the age of 76.
The accolade celebrates for McAvaney's lifelong support and contributions to athletics broadcasting.
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Coverage of the marathon will be streamed and broadcast across Australia live on Seven's channels and streaming service.
Ten sporting stars to take the plunge for FightMND fundraiser at the MCG.
The agreement spans broadcast, digital, connected TV, subscription services, radio and social platforms.
With new recruits, expert analysts, and expanded programming, the network aims to deliver comprehensive coverage for fans.
New Seven sports boss Chris Jones oversees another selection shuffle
Plus: Joshua McDonnell, Jayne Azzopardi, Gavin Sommer, and Hugh Whitfeld.
National treasure McAvaney said: ‘To be given this opportunity means a great deal to me’
Other Hall of Fame inductees this year are Sam Mitchell, Corey Enright, Tom Leahy, Michael Aish and Mark Williams
Lewis Martin: "He is a broadcaster in a league of his own and has made a remarkable contribution to Seven"
• McAvaney started his television career at Seven News in Adelaide in 1978
• Netflix, Nine, The Australian, Q+A, Eddie McGuire, Sam Newman and Bruce McAvaney
