Adult film star, standup comic and porn pundit Kate Kennedy made a hilarious appearance on the Deathsquad Podcast Network’s “Dead Air” show last week in Los Angeles, along with comedian, actor and writer Earl Skakel. The freewheeling program is hosted by comic Brian Holtzman, and produced by Brian Redban. “I had a blast guesting on ‘Dead Air’!” raved Kennedy. “I’m a big…