Is it true in the blog, it said Hallmark can't air the brady bunch? Then forget them....

TV Land has the rights to the series on television. Hallmark has bought product rights, such as Brady Bunch cards and collectibles.

what does Product right's mean

See Tuesday's blog. I explained it.

Thanks for the help my friend

It should be stated that the Hallmark Channel and Hallmark Merchandise/Licensing are not necessarily ran under the same contracts, etc.
So just because Hallmark Gold Crown stores carry BB collectibles, doesn't mean Hallmark Channel needs to air the BB series.