How much would it be to buy Doctor Who off of BBC?

The cost of buying the rights to "Doctor Who" from the BBC would likely be prohibitively high and not publicly disclosed, as it involves complex negotiations and considerations of the show's brand value, production costs, and licensing agreements. Additionally, "Doctor Who" is a flagship series for the BBC, making it unlikely that they would sell it outright. Potential buyers would need to engage in extensive discussions regarding rights, distribution, and future production plans.