The celebration of America’s 231st birthday may have to take a backseat in at least one household. After an exhaustive and probably dusty search, the folks at “Clean House” (8 p.m., Style) have bestowed upon the Loria family of Piscataway, N.J., the title of “Messiest Home in the Country.”

I like the word “messy.” It conjures up images of innocent disorganization. No ad-supported cable show would ever saddle an American family with the distinction of owning the “Dirtiest Home in the Country.” Or the “filthiest” home. I think I’ve spent the night in that house. But that’s another story.

The focus here is on clutter, or rather its removal. In addition to helping each family heave the mountains of disorganized junk, they will organize yard sales and other means of turning trash into treasure. Nash and team will also help both families address the underlying issues and habitual behavior that lead to the accumulation of so much stuff. In a small way, both families will be declaring their independence from messiness. So perhaps this is an appropriate Fourth of July presentation after all.

¢ Tony Danza hosts “A Capitol Fourth” (7 p.m., PBS, check local listings), broadcast live from the West Lawn of the U.S. Capitol. Scheduled musical performers, readers and presenters include Tony- and Emmy-winning Broadway star Bebe Neuwirth, Grammy-winning gospel legend Yolanda Adams, Elliott Yamin (“American Idol”) and “Heroes” star Hayden Panettiere, performing with the National Symphony Orchestra under the direction of Erich Kunzel. In addition to the night’s patriotic theme, Kunzel and musicians will commemorate the 50th anniversary of the debut of the influential Broadway musical “West Side Story.”

Following a long and popular “Capitol Fourth” tradition, the evening concludes with a fireworks display accompanied by Tchaikovsky’s “1812 Overture,” complete with live cannon fire provided by the U.S. Army Presidential Salute Battery.

¢ The “1812 Overture” has absolutely nothing to do with the Declaration of Independence, the War of 1812 or American history, period. It was written to commemorate the Russian defeat of Napoleon. But it serves double pyrotechnic duty tonight. “Boston Pops Fireworks Spectacular” (9 p.m., CBS) also concludes with a rousing rendition of the Pyotr Ilyich Tchaikovsky favorite.

Craig Ferguson of the “Late, Late Show” hosts this spectacle, featuring Keith Lockhart and the Boston Pops, broadcast live from the Charles River Esplanade in Boston. Lockhart will be joined by musician John Mellencamp, who will perform songs from his long career and repertoire, dating back to the time when his stage name was “Cougar.”

¢ NBC has the New York City display as the backdrop to its “Macy’s 4th of July Fireworks Spectacular” (8 p.m., NBC). Look for performances by Martina McBride, “American Idol” winner Jordin Sparks and fellow “Idol” contestants Blake Lewis and Melinda Doolittle. Natalie Morales and Tiki Barber are your hosts.

¢ The Windy City is also represented with “Taste of Chicago 2007 Fireworks Spectacular” (7 p.m., MY Network).