Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. CBS (CBS) upgraded to Buy from Sell at UBS with analyst Doug Mitchelson saying he sees any deal with Viacom (VIA) as priced into CBS shares already. He also has increased confidence in consensus estimates for CBS and sees further upside if the national TV ad market and CBS' ratings remain strong. 2. Pandora (P) upgraded to Conviction Buy from Buy at Goldman with analyst Heath Terry saying he sees significant upside to out-year estimates from premium radio and on-demand subscriptions. He expects competition to ease as new entrants slow and existing providers focus on profitability and limit "free" models. 3. Las Vegas Sands (LVS) upgraded to Buy from Neutral at BofA/Merrill with analyst Shaun Kelley saying shares remain fairly under-owned and thinks estimate revisions will move higher due to market momentum, better ROI for Parisian, Cotai infrastructure additions, and optionality from Japan and real estate. 4. KBR (KBR) upgraded to Buy from Hold at Deutsche Bank with analyst Chad Dillard saying yesterday's 10% post-guidance cut selloff is overdone and backward-looking. 5. West Marine (WMAR) upgraded to Buy from Neutral at B. Riley. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.