BERLIN, Jan 12 (Reuters) - A row between a handful of big Bundesliga clubs led by Bayern Munich and smaller sides such as Eintracht Frankfurt over how to divide up increased television revenues grew louder on Thursday.

Bayern's chief executive Karl-Heinz Rummenigge threatened the league with consequences if they are not giving a larger share of the revenues from a new television deal worth 420 million euros ($509 million) a year starting next season.

That is 80 million euros above the previous deal.

Rummenigge said Bayern and other big clubs needed a larger share of the revenues to remain competitive in Europe while smaller clubs led by Frankfurt reject that, saying Bundesliga competitiveness was already suffering under Bayern's dominance.

Frankfurt boss Heribert Bruchhagen was quoted in Bild newspaper on Thursday saying the German football league (DFL) was acting like a 'Rummenigge commission' that dances like puppets to his demands.

Rummenigge demanded an apology from Bruchhagen, who told Bild he was sticking to his views. The Bayern executive, whose team have won the Bundesliga in six of the last 10 seasons, said they were already being more than fair to the rest of the league.

'Bayern has a big social heart,' Rummenigge said. 'Otherwise we would not have stayed in the central television marketing rights agreement but would have sold our home matches directly.

'I only have to go over to Premiere boss (Georg) Kofler. We'd get a multiple of what we're getting now. We could reckon with 100 million euros. And we're going to consider doing that if Bruchhagen doesn't apologise.'

Bruchhagen said he would not back down and insisted the league would be hurting itself by allowing Bayern to get a greater share of the revenues.

'The competitiveness in the Bundesliga is already endangered,' he said. 'The table is getting more and more boring all the time.'