Sad news, Bassie and Adriaan announced that they will quit in January 2004.
For the non-Dutch visitors: it's a children's show. Bassie is a clown and Adriaan a acrobat. Together they solve all kind of mysteries, and always catch the bad guys.
The official press release (Dutch) is here. Bas van Toor and Aad van Toor (as their real names are) said they want to quit on the top of their career, and not wait untill they'll get tired of their work.
If you have Flash enabled then their website is definately worth visiting: www.bassie-adriaan.nl. For those of you who have many childhood memories of them (like I do): there is a wonderful picture collection online.