New Zealand First sports and recreation spokesperson Clayton Mitchell said the party would "like to see games of national significance... broadcast live and free-to-air".
And Green Party spokesperson Gareth Hughes said they "would like everybody to be able to watch these games, and we are interested in finding solutions to make it happen".
Mitchell said events that should be offered free-to-air included All Blacks matches, the Olympic Games, Commonwealth Games and Winter Olympics.
"I think it's something that needs to be put through for the next Government when they come in," Mitchell said.
He said the party did not "have any issues with sports, just general sports, to be put behind a paywall but where... millions of dollars are going in to support certain sports and taxpayers' money - they should be made available for all those people, particularly those major games and events".
Hughes added: "We support 100 per cent accessible broadcasting and actively endorse public broadcasting."
"We would like everybody to be able to watch these games, and we are interested in finding solutions to make it happen. Other countries have laws that ensure everyone is able to watch sporting events that are of great importance to the nation."
But the issue does not have current Government support, with Minister for Arts, Culture and Heritage, Maggie Barry saying the Government "does not intervene in the operational decisions of broadcasters".
"The market for acquiring broadcast rights for sport is highly competitive and is open to free-to-air and pay television providers alike," Barry said.
"The Government does not intervene in the operational decisions of broadcasters, including what broadcasting rights they may choose to acquire."
Asked about free-to-air coverage of sport of national significance, Barry said: "In a country the size of New Zealand it would not be possible to maintain a professional sports sector without the income derived from broadcast rights revenue.
"Sporting codes rely on revenue from broadcasting rights to maintain internationally competitive salaries for their athletes to keep local talent from going overseas."
She added that in the coming years it was expected fans would "have more ways to watch sport than ever before as digital platforms develop and expand".
Labour Party sport and recreation spokesperson Trevor Mallard said free-to-air coverage of sport was "highly desirable but... unaffordable given sport priorities".
"We would rather spend money on improving participation in sport than reimburse sporting codes," he said.
The cost of such reimbursement would be around $125 million a year, Mallard said. "We've got better things to do in sport with 125 million bucks."
Maori Party co-leader Te Ururoa Flavell said while the party "supports as much coverage of sport being available free-to-air on whatever device people choose to use", it did not "believe it is for politicians to legislate on what should or shouldn't be free-to-air".
"The decision on what should be free-to-air should lie with the rights holders and broadcasters and will be driven by public demand. We don't believe it is for politicians to legislate on what should or shouldn't be free-to-air."
And ACT leader David Seymour said the party "believes taxpayers should not be forced to pay for the broadcast of sport".
"The funding would be better used on core government services, or returned to taxpayers who can spend it as they choose - on sports TV subscriptions, for example."
