HARRISBURG - Gov. Tom Corbett's opinion on the state's public pension system is clear: "We have to fix it. It's that simple."

Of course, it's not that simple. The state's two major public pension systems, the State Employees Retirement System and Public School Employees Retirement System, have an unfunded liability of more than $36 billion.

The governor said he was not prepared to recommend any solutions at this time, though he supports a 401(k)-style pension plan.

The House State Government Committee on Tuesday discussed several pension bills, including measures that would move all future state workers, teachers and lawmakers into a 401(k)-style defined contribution plan instead of the existing defined benefit plan.

"Our pension plans are taking on water every single day. We need to plug the hole, and then start to bail the water out, and this begins the process of plugging the hole," said state Rep. Eli Evankovich, R-Westmoreland, the sponsor of one of the proposals.

In a defined benefit plan, benefits are guaranteed based on a formula that includes years of service and salary. A defined contribution plan allows workers to save for retirement and invest as much or as little as they choose.