No MP should be looking at any sort of films in Parliament, as they should be concentrating on the debate. The British public deserve better: why should they pay for their representatives to watch films in the debating chamber?
Any employee who watched a film whilst they were attending a business meeting would be sacked. As for watching pornography well this is beyond the pale. If, as alleged, the miscreant is found by an investigation to be watching porn films in parliament, then he should be sacked on the spot and encouraged to resign his seat for a new constituency election. If the alleged miscreant was watching child porn then he should be reported to the police.
I don't believe that it is illegal to watch soft pornography in public but it is offensive especially in the workplace. An MP cannot be forced to resign over this matter. It is time for constitutional change. There should be an independent constitutional court which has the power to remove miscreant MPs from office and force a by-election. The court should also be able to remove from office a minister who lies to parliament or breaks the ministerial code: without this it is difficult to defend our democracy.