Shares of FuboTV Inc. FUBO jumped 8.9% in premarket trading Friday, after the live TV streaming platform reported first-quarter results that beat expectations and raised its full-year subscriber outlook and provided an upbeat liquidity view. Net losses narrowed to $86.4 million, or 37 cents a share, from $142.9 million, or 89 cents a share, in the year-ago period. The FactSet consensus for per-share losses was 45 cents. Revenue hiked up 33.9% to $324.4 million, above the FactSet consensus of $303.4 million. Subscribers grew 21.7% to 1.285 million, and average revenue per user (ARPU) increased 7.5% to $76.79. The company…