In Germany they rely on sponsorship from German companies, which is much higher than PL clubs
I remember reading a good account comparing Bayern and Man U...Bayern were well behind in TV money, ticket money and matchday generated income. But i think it was Adidas with sponsorship that took them well past United for total income.
Allianz are heavy backers of Bayern, Madrid phone up their friendly (well-known) Spanish bank to arrange financial fixes, Barcelona are permanently in debt but never acknowledge it.