Versant, Comcast's spinoff of the majority of its NBCUniversal cable network portfolio, is gearing up to go public. The new entity will trade on the Nasdaq under the ticker "VSNT" after the separation, according to a filing with the Securities and Exchange Commission Thursday. Investors also became privy to more of Versant's financials.According to the filing, Versant's revenue has been on the decline in recent years. Last year, the assets housed under Versant generated $7 billion in revenue. That's down fr ...