ENTERTAINEMNT SITES POPPING UP ALL OVER.

Byline: P.J. Huffstutter Daily News Staff Writer

While most television-styled on-line programming has been a financial flop, entrepreneurs continue to forge ahead and make TV shows for the PC.

Both America Online and the Microsoft Network launched expansive - and expensive - programming ventures. This spring, former NBC television chief Brandon Tartikoff signed an 18-month deal with AOL's Greenhouse Studios division, where he will create programs for the Net, network television and in print. One of his first projects is ``Beggars & Choosers,'' a drama pitched as an ``L.A. Law'' housed at a TV network.

Earlier this year, MSN revamped its service with a series of television-like programming. With 14 shows on the service's six different channels, viewers can catch ``Nelson's World''; ``Almost TV,'' an improvisational comedy show that plays off of pop culture; and ``Project: Wildfire,'' which talks about unexplained, ``X-Files''-worthy phenomena.

Cable giant HBO spawned several original Net shows, including ``Road Kill,'' a documentary about hitchhikers on the move, and the comedy program ``Give Me Liberty.''

Sony continues to promote its own broadcast products through The Station, an advertiser-supported network on the World Wide Web. Its on-line channels include ``Jeopardy,'' ``Wheel of Fortune'' and ``The Young and the Restless.''

Also on the Web is the NBC-backed ``Second Shift,'' a spinoff of the network's ``Homicide'' television show.

But one of the most innovative projects is coming out of smaller start-up companies. Take Spottworks Inc., a Beverly Hills-based on-line content developer and production house. This summer, the firm will launch ``The Musicosm,'' a sassy and smart on-line serial set in the entertainment industry. The show will also include a music-themed, Net-based community for its viewers, said company founder C. Scott Fedewa.

And then there's ``The Campus Beat'' - http://www.campusbeat.com - a weekly improvisational sitcom developed by Mytho-Logic Studios in Chicago. Viewers send in plot twists, which are incorporated into the show. Every Saturday night, the actors perform and are filmed at the comedy club ImprovOlympic, located near Wrigley Field. The program is then available on line - in Real Video format - the following Monday.