Commercial airtime is expensive as is programing development, Disney owns many media outlets & is king at promotion.
fyi, Cox Communications owns The Travel Channel/Travel Media Inc (bought remaining interest from The Discovery Channel) & offers ABC on their Video on Demand service, sure wouldn't be a stretch to think that Disney is providing TTC with 'free' programing re their parks. I luv both parks, yet think the recent caliber of TTC disney related shows has been little more than a thinly disguised informational as opposed to entertainment.
To be fair, NBC does tout the Universal parks on The Today show frequently too

, Al Roker a frequent visitor.
OT, yet just for fun I've dug into some of the outlets Disney owns (we r small stockholders). Among other things, they control the following, appears as though there are lots of potential in-house advertising/programing opportunities:
Film Walt Disney Pictures Touchstone Pictures Hollywood Pictures Miramax Films Pixar Broadcast Television ABC Network Owned and Operated Television Stations WLS - Chicago WJRT - Flint KFSN - Fresno KTRK - Houston KABC - Los Angeles WABC - New York City WPVI - Philadelphia WTVD - Raleigh - Durham KGO - San Francisco WTVG - Toledo Cable Television ESPN (80%) ESPN2 (80%) ESPN Classic (80%) ESPNU (80%) ESPNEWS (80%) ABC Family Disney Channel Toon Disney SOAPnet Lifetime Network (partial) Lifetime Movie Network (partial) Lifetime Real Women (partial) A&E (partial) A&E International (partial) Jetix Europe (partial) Jetix Latin America The History Channel (partial) Lifetime Real Women (partial) Radio ABC Radio WDWD Atlanta WMVP Chicago WLS Chicago KESN Dallas KMKI Dallas-Forth Worth KRDY San Antonio WCOG Greensboro, NC WRDZ Indianapolis KABC Los Angeles KLOS Los Angeles KDIS Los Angeles KSPN Los Angeles KDIZ Minneapolis - St. Paul WKSH Milwaukee, WI WEVD New York City KDZR Portland, OR KWDZ Salt Lake City KIID Sacramento KMKY Oakland KQAM Wichita KKDZ Seattle WSDZ St. Louis WWMK Cleveland KMIK Phoenix KDDZ Denver WWMI Tampa KMIC Houston WMYM Miami WBWL Jacksonville WBYU New Orleans KDIS Little Rock WWJZ Philadelphia WWJZ Philadelphia WMKI Boston WDZK Hartford WDDZ Providence WDZY Richmond WGFY Charlotte WDYZ Orlando WMNE West Palm Beach WEAE Pittsburgh WDRD Louisville WDDY Albany, NY KPHN Kansas City WQUA Mobile WBML Jacksonville WFDF Detroit WFRO Fremont, OH WDMV Damascus, MD WHKT Norfolk Radio Disney ESPN Radio (syndicated programming) Music Walt Disney Records Hollywood Records Lyric Street Records Publishing Book Publishing Imprints Hyperion Miramax Books ESPN Books Theia ABC Daytime Press Hyperion eBooks Hyperion East Disney Publishing Worldwide Cal Publishing Inc. CrossGen Hyperion Books for Children Jump at the Sun Volo Michael di Caupa Books Disney Global Children's Books Disney Press Disney Editions Disney Libri Global Retail Global Continuity Magazine Automotive Industries Biography (with GE and Hearst) Discover Disney Adventures Disney Magazine ECN News ESPN Magazine (distributed by Hearst) Family Fun Institutional Investor JCK Kodin Top Famille - French family magazine US Weekly (50%) Video Business Quality Wondertime Magazine Parks and Resorts Walt Disney Imagineering Disneyland Resort Walt Disney World Resort Tokyo Disney Resort Disneyland Resort Paris Hong Kong Disneyland Disney Vacation Club Disney Cruise Line Other Disney Theatrical Productions Disney Live Family Entertainment Disney on Ice The Disney Store Club Penguins ESPN Zone Disney Toys Disney Apparel, Accessories and Footwear Disney Food, Health and Beauty Disney Home Furnishings and Decor Disney Stationery Disney Consumer Economics The Baby Einstein Company Muppets Holding Company Disney Interactive Studios Walt Disney Internet Group