DIY SOS.Oliver Hudson - who suffered from hydrocephalus, a build-up of fluid in the brain - appeared on the BBC renovation series with his brothers and dad Darren Hudson in 2019.The episode aired again this week and afterwards Knowles shared a moving social media post telling viewers that Oliver had died.“The boys & I @DIYSOS & volunteers send condolences to our friend Darren & his lovely family on the sad passing of wonderful Ollie who is missed & was so loved,” he wrote on Instagram.“The